I'm currently riding a 26 inch hard tail and the time has now come where I must buy a new fork, frame, and rims. In light of this I've been seriously pondering the idea of going to a 29er, possibly an all rigid 29er. I'm not buying until spring but I'm looking at the salsa Mamacita (scandium/carbon) and the Salsa El Mariachi (full steel). What are people's thoughts on steel versus carbon on an all rigid set up? Carbon is obviously the lighter option, so if it's lighter and it rides better I'll call it a two-fer and justify the expense. If steel is the way to go I'll bite the weight and go with steel. Feel free to gush about any revelations that have come about riding rigid rigs(geez that's some alliteration). By the way the bike will be being ridden primarily in front range Colorado on trails like white ranch, chimney gulch, and apex park. As well as some racing on the mountain states cup and winter park race series. For anyone who is familiar with the region that may give some perspective as to the bike's application.