I do the $100/mo for myself, then about ~$200/mo for startup.
I'm betting he doesn't need a frontier model. Sonnet, today, is likely good for 80% of his tasks, which largely involve repretitive, tedious work.
> Also who spends 2.4k yearly for personal AI usage, like what's the usecase? If your friend is spending that money for his business then it's not personal computing
Combination of business and personal.