'Historically on the Internet there are two factors that are famous for killing free sites: server space costs and throughput (bandwidth) costs.'

This is unfortunately true and even though Marketplace sales help defray these costs - this same problem is affecting the profitability of the MP for the same reasons.

This is a feature rich site with an immense amount of wonderful content. I hope everyone who opposes this remedy will try to consider this and not feel too badly about having to make this change :(