if you look at the better selling titles, it becomes very obvious that they're

1) good games. equal console/pc ratio
2) (mostly) bad games that have a cool name or franchise (console)

latter probably sell, because there's a) kids b) casual gamers c) parents buying them judging from the ads, the brand and the packaging. Oh, and word-by-mouth(?).

i guess in a few years the gaming market will be like the msuic market. the taste of the naive younger than 16 crowd will decide what titles will be released, because they're the majority, who still actually BUYS stuff and they certainly are console guys.