We don't know how much it'll cost yet right? Might end up more expensive than we think?
We'd need to know the cost associated with running one of the big relays...
Discussion
Still way too early in the market to make any definitive statements on what an average cost would be BUT there will be plug and play solutions that develop which will make it easier for everyday users to establish their own relays or run a paid relay service, thus resulting in more paid global relay competition.