>> I don't buy this. How many businesses are we talking about? Ten thousand? Twenty thousand? So each business commits $200 to $400 and you have a multi-million dollar OSS enterprise

You're describing commercial software, not FOSS. and yes if you have 10000 customers paying $200 a year, you have a very successful business.

Of course it may take you a few minutes to convince 10000 businesses to pony up the cash, but that's the easy part right?