This really doesn't feel like an important enough area to demand fresh government regulation. Consumer protection laws are meant to be a last resort when a broad chunk of the population are being actively screwed over by monopolies or entire industries. If losing access to a game originally released a decade ago fits that bill the consumer protection agency is going to be very busy.
Think of it this way - if you learn you don't like a company's practices and chose not to buy their next video game release, does that really derail your life? If not, or if a big chunk of the population wouldn't say yes, we really don't want Uncle Sam rolling in with even more reach than he already has.
That argument makes no sense. Just because something only affects those that enjoy a particular hobby does not mean that those consumers don't deserve protection. This also isn't really just about games as other forms of copyrighted content also often disappear when the would-be owners can't be bothered to keep it available.
Remember that copyright which is only allowed to exist because we think it will result in more creative works that will eventually be part of the commons. If a company is taking active steps to take something away then they are abusing this deal and should forfeit any copyrights.
Think of it this way - if you learn you don't like a company's practices and chose not to buy their next video game release, does that really derail your life? If not, or if a big chunk of the population wouldn't say yes, we really don't want Uncle Sam rolling in with even more reach than he already has.