As well, such a thing could be a tool for benevolence. A developer could tune the length between releases to offer just a little more content for the same price, if they felt that was the right thing to do. In fact, most of the factors in microtransactions work this way. The negative reputation these systems have comes from factors that are tuned to maximize profit and abuse players for their money. But that's not an inherent trait in the system; you could just as easily use it to ensure your own bankruptcy!