Yeah but you need to temper your expectations with aims that are within the realm of achievability. Keeping in mind that a lot of those who develop audiogames are one or two person affairs, this means that high budget, what we might call a Triple A audio game is a bit beyond that which many can strive for. We do have several examples of very well done, high quality games with hours and hours of fun, not trying to imply otherwise, just saying that it is not as easy as saying I want to do it, let's do it. High quality sound libraries must be purchased, it may even be required to record one's own sounds for parts. Voice actors must be sought out, and of course, they will be wanting paid for their work. A team of designers, coders, and a manager who can keep the project on track is needed, as well as development time. Then after all that, the company might produce a game that does not go well. It is a risky business, to be sure. Then for all that, some people will whine and complain, or even attack the company or individual who created the game. It's such a shot in the dark and you might be flayed alive for your efforts that I'm not surprised that developers have closed their doors and stepped away from it.