That is if you use all of Amazon's preferred providers; go another route and you likely wouldn't even see that margin. Additionally, Amazon REQUIRES that participants provide paid time off, benefits, etc.
I also don't see any allocation of funds for an office, secured parking for 40 vehicles, business licenses and fees, etc. Toss in unemployment contributions, a couple workman's comp cases, and I'd imagine clearing $2,000 a week after taxes would be a challenge for ‘owning’ a business with a hundred employees and a singular customer who really is under no obligation to continue to use you as they explore innovations.
(Oh, and for that $2k a week, you're expected to ooh-rah employees 7 days a week with morning and evening ‘team’ meetings. Figure about a $23 an hour ‘wage’ with everyone but you getting time off.)
That's a pretty hefty treadmill that Amazon expects ‘owners’ to pound on.
All in all, someone going into it with open eyes, risking just under $100k and willing to put in 84 hours a week, it's not the best return on the money, but it's a pretty solid one. In more expensive markets, you might even be able to keep your head just above poverty level.
100K per year?
84 hours a week?
23 dollars an hour.
not much money for all that liability and responsibility.