I remember that from vanilla. Though, I never got the prompt to get the whole family.
Thanks, I'll just not infinitely expand the farm, figuratively speaking. 500 menials was too much. I'll keep it prosperous enough to equal other sources of income.
I suppose the only thing you'd want loads of moni for is the Immortality Project. To even have it show up at all in your Gene Lab, you need to have 50mil cash on hand. I don't remember if it costs a lot of money to apply it afterwards, or if they deemed doing it causing 100 Carcinogen points and high Health damage enough, because if you just slapped it onto all your slaves without any regard to their health, they can actually die afterwards - mainly because the Immortality Project makes them 'physically ageless' (currently drops their Physical Age to 25 if higher), but it doesn't mean they can't die from other causes of death.
As for the Royal Family, it depends on how much money you had on hand at the time, and how the event starts out. Sometimes you'll have the entire family surviving, other times the King will be dead. Going by the coding I think you required at least 2.5mil cash on hand or else enough Reputation to lose? Though going withe the alternative also nukes your Arcology's Trading Level to 0, or perhaps even negative, for a really long time. Maybe if the event fires with the King dead, you don't get the option to grab the Entire Court and instead have to choose. Unfortunately it's a random event, so it's not something you can reliably savescum to get the optimal outcome.
As for the Farmyard money printing, unless I'm doing a run where I only run a small amount of slaves (aka Arabian
food oil baron harem run), I only have it produce enough food to cover plus a little extra on the side, maybe up to 100k income or so (as opposed to the 1.5mil+ income). Mainly because from Brothel alone it'll usually cap out at around 400k-500k income from pure market saturation even with high population and if you made everyone release porn via the Media Hub, you pretty much should get over 100k per week alone by that time, so I personally think it's a good comparable amount. That's not even counting additional income if you're also running Pastoralist and have everyone lactating (or just print money from hucows permanently hooked onto Industrial Machines with their 9000cc+ boobs), or if you have Beastiality turned on and have some slaves doing Beastiality Shows at the Farmyard.