I'm not going to get into a console flame war, but 20million is hardly tiny, unless you're talking about the ARMA fan base then I really can't comment on either way. I do recognize the cost of the development kit but it's not like the game would be specifically developed for the ps3 but rather simply ported over much like 85% of the games are for it anyway.
Honestly I've never heard of these guys until I stumbled upon the trailer for arma2 by chance and it looked like an amazing game and I was confused as to why there wasn't more talk about it; then I saw that it was comming out for the nextgen console(s) so I thought to myself good now I've got a realistic shooter to play because the new socom was a terrible fiasco, and a total disgrace. Now that that's gone it sucks because there's really jack shit out there for realistic shooters on the new consoles (If you call COD realistic good luck to you) and I'm very tired of all these run and gun games.