Jim, MakerBot has sold thousands and thousands of MakerBots! The number of people on that forum (my son and I are two of them!) is but a tiny percentage. Most people who bought MakerBots don't ever visit. Almost all the forums I belong to (cars, bots, guns, tech, etc.) are dominated by complainers. When they are having problems, they seek out ways of expressing their discontent!

I also agree with BurnItDownBaby, the repraps are perhaps easier to keep current with the large online support group. I love my Prusa i3, and if I have an issue, I just ask Joe Prusa for an answer.