Arcade games can be developed by a team of 1 or 2 people, for almost no money. Same with MUDs and text adventures. So that's all we're ever going to get, unless we can legally force mainstream companies to include access features. Because it's folks like EA and Nintendo who have all the money. I've seen sales stats on some accessible games. Making $5000 to $8000 over the lifetime of a game would be considered a huge success. Compare that to the 18 million dollars per month valve makes on most games, or the 18 million dollars league of legends makes every five days.