Don't forget there are the people like me (well there maybe a few others) who can ride ok but don't know anything about bikes, I am a noob when it comes to knowledge about this stuff! I only know about the parts of the bike that I have broken, which is well almost everything but not quite.
My take on tubeless is, I am not going to do it. I would like to try some else's bike that has it though sometime just to see how it feels as I do have a pretty dedicated bike for xc only now. I think I am too hard on it to make it work well though.