Going to disagree with you on the latter point. Once upon a time, maybe, but since he made the focus of it being his livelihood, it's not about the joy he derives, it's absolutely about the money. Just ask our boy
SomboSteel about that one.
I've had to work on projects with other people before. Sometimes things can be done and work well. Often times it's a hindrance. When I agreed to take over hosting a game server for folks I made it clear that I would, but I had one simple policy. There is no 'rule by committee'. I will absolutely listen to people and their input, but I am not obligated to bow to their wishes at any point. I was really tired of people wanting to halfass certain things "just to get it done", where I feel if it wasn't done right, it wasn't done at all, it was just another layer of fuckups that had to be fixed.
Now you've got DPC, the man with his vision. He knows what he wants, he knows how he wants it done.
Finding somebody who'd want to help you on a project? Probably not too difficult.
Finding somebody who is also skilled/good at doing what you want to do? A little more challenging.
Finding somebody who shares your vision and complements it? That's more challenging.
Finding somebody who is all of the above, and gets the work reliably done on time?
Good fucking luck.
As I understand it, DPC does have somebody else doing the 2D art, but their style is pretty unimpressive, almost all the girls look the same outside of a few minor cosmetic details. It also has absolutely zero impact on the game at large, so we neither gain nor lose anything here.
I would, in almost every scenario I can imagine, prefer having no help at all rather than the kind of help that I have to go through later with a fine-toothed comb to correct, due to any misunderstandings or disagreement on any particular point/method.
I sure was shit wouldn't be splitting the money I make to survive and feed a family with if I had to do that. 200% manpower does not result in 200% production speed, so it damn well isn't going to be worth 50% income loss (or whatever ratios may be used).