I stopped buying iOS apps from the traditional publishers after being burned by crappy ports, and I suspect many others have as well. I suspect that as soon as the platform stops doubling every year, the been-burned customers will outnumber the naive ones, and sales of these kinds of games will drop.
The problem won't disappear anytime soon though, because even though the platforms will stop doubling in size, there will still be many millions of naive new customers every year who will see these apps and view $5 as a bargain for the slice of nostalgia promised.
