I mentioned in the post that our pricing for this is definitely a "best guess" type thing, based on how much we're thinking it will cost us to offer! We may have gotten it right! We may be totally off. We'll revisit the question in six months and re-evaluate the prices, and they may stay the same or they may change.

I will refer you up to my earlier comment about the economics involved, though -- for things like this, we have to be super careful, because user payments are our only way of covering our costs.