I don't think you can expect these services to lower pricing any time soon. Why? It's clear now that Chargify and Recurly, who have both tried a very friendly freemium model, vastly underestimated the costs and problems associated with the businesses they are building. In both cases, it's a good bet that they needed to either raise prices or go out of business.

Pricing only goes down once the business model is clearly established across multiple competitors. This space simply isn't clearly defined yet.