Saw ARMA 1 on a store shelf some years ago, remembered all the discussions about the bugs, put it back, and moved on. Apparently that game was sufficiently patched, which is respectable given the number of studios that leave games unpatched, but who knows how many players had written off the game by that point. Demigod will probably suffer the same fate. Stardock/GPG could make multiplayer flawless, but the zero-day buzz focused on the game's networking problems.
Videogaming is a buyer's market. With 1000+ PC games to purchase from digital distribution sites alone, please let me know why I should spend money on your buggy product. What I'm trying to say is that a few extra months of QA and non-idealized beta tests help in the long run. With so many choices, you can't expect the average videogamer to tolerate paid beta tests...