Bailing on buying products from Daz store is a great idea and I applaud anyone who manages to do so.
Personally, i have a lot of store credit, so here's the strategy I'm doing this weekend: I'm going through the entire store (well, back to Genesis 3) and wishlisting anything I might possibly someday want.
ANYTHING. If it meets some minimum bar of quality, and I can imagine using it, it gets wishlisted. Not if I can imagine using it my current project; not if I can imagine using it in any genre I expect to work in. ANY genre. Pirates? Wishlisted. Wild West? Wishlisted.
Basically, I'm gambling my time now for future Wishlist deals, or deals that draw from the wishlist. I'm making separate passes adding stuff from Daz Plus and Daz Originals with them being more focused on stuff I'm more likely to actually use shorter term, so that deals that draw from those automatically, like the Xmas Advent sale, will have something to offer that I might actually use.
It's not that I love wishlist deals or think they're less likely to have minimums; it's that the wishlist is AFAIK literally the ONLY thing I can control that affects the deals they offer me. So I might as well make those offers as broad or as useful as possible, to increase my chance of getting a quality deal.
It's not that I'm going to buy stuff outside the genres I work in in the short term. It's just that I don't want to ever go back through the store and wishlist everything again, so just do it now. When I buy from a wishlist sale, I'll limit myself to stuff I actually want, and that will be a little more tedious with the extra stuff in the wishlist, but the wishlist won't be full of JUNK, just stuff I think is NOT junk but that I don't currently have any use for.
I've been through a few 'deals droughts' r.e. the Daz3D.com store. Your strategy regarding wishlisting everything you might be remotely interested in is worthwhile, as there are occasionally particularly good wishlist sales (usually involving discount stacking) and this can bleed over into lightning deals. Also, you can just sort your wishlist by price low to high (or % off if you have that Daz Deals feature available) to watch for deals on stuff you are interested in.
But back to the larger picture, yeah I recommend adopting a 'sniping' attitude when waiting on decent deals. Just accept that the item you want may go on sale for really cheap someday (lightning deals discount stacking, etc.) so just be patient.
Also, 'want' isn't the same as 'need', remember that there are a LOT of legally free assets out there (not talking about sharing sites), and that there is at least one site out there that tries to track these (poserdazfreebies.mirahaze.org) outside of the Renderosity and ShareCG freebies collections. It's not always kept up to date, but it's worth bookmarking.
It's OK to spurge occasionally on an asset that you need right now for some project, but try to not box yourself into that thinking. Some of us following this thread are designing games, so yeah we are interested in cool new outfits, environments, hairstyles, etc. to play with, but the goal should be to stay true to your story, and not constantly getting distracted by shiny new products you see on Daz3D.com or whatever.
I still maintain that you can design a game using 100% free assets, if you are patient and don't mind learning Hexagon/Blender to make a couple of things every so often, say if you need to throw together a new room for a scene or need to modify an outfit or something.
But yeah, short form is, get into the 'sniping' mindset and learn to be patient and try to make do with what you have right now when you can, until the next 'killer' sale shows up.
Your store credit balance, if it's fairly high right now, just think of that as peace of mind and be patient, wait for the best deals.
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That being said, since the Daz3D.,com sales team is watering down tokens now with 'minimum prices', just give up on the token chase and maybe cancel your Premier membership at the end of the month (or at the end of March Mehness) to send a message. Easier said than done, I know, but again if a large enough message is sent to the Daz3D.com sales team, i.e. that their latest changes to sales strategy is losing them customers, well the guys at the top that are wanting a return on their investment will notice, and will want to know why revenues have suddenly fallen off...
You can always re-join Premier, or just Daz+ if that's your speed, at a later date when things get more interesting again sales wise, it'll still be there. Or maybe the Daz sales team will give up on Premier, which wouldn't hurt my feelings, but I'm not holding my breath on that one.
For those of us that are just 'resting' since we didn't take the 'Premier deal' and have expiration dates for Daz+ a ways down the road, we can just sit back and wait, and grab the weekly Daz+ freebies in the meantime, and snipe here and there with our $6 off DO coupons.