I love the idea of small scale stock offerings, but isn't this illegal? My understanding was that selling stock like this is a private equity offering and that private equity offerings are limited to a small number of people unless the investor is sufficiently rich (the government likes to use the term "accredited investor").
Yeah, it probably violates some securities laws... but when everyone makes lots of money on the deal, there's rarely an issue. When investors lose money, they're all too happy to bring up securities law violations and fraud claims. Better to do everything by the book and not give anyone an excuse to sue you later.
I'm not a securities lawyer, but in a nutshell, startup companies should prefer a very small number of professional (and accredited) investors.