Don't think it has much too do with thinking it will make you play better, or how they can justify it, some just want to try it. Not much more than a good wood shaft. Pool really isn't that expensive of a hobby, in the grand scheme of things, unless of course you were to get into collecting cues. Case in point, just got my second Schon cue, 1st one put a 30" Jacoby Ultra pro shaft on that I am really happy with. Needed a shaft for the second one, so I talked to the Jacoby people at their booth this weekend and tried their 12.7mm carbon out. Was really nice, but so was my Ultra wood shaft, ended up ordering their carbon as I really wanted to try one for more than a few balls,, and they didn't have a 30" with my joint in stock there. Some of it was I liked the look of it on my cue, and they said deflection would be similar to the Ultra, and I just think carbon will be the cue stick of the future. Will I like it after using it for awhile, we will see. If not I'll just get another Jacoby Ultra shaft. I actually think more players would buy a carbon shaft if they weren't so worried about other people's opinions. I say it's their money, and if they want one, no big deal as long as they are not taking a step backwards. I do have to admit though, they are incredibly expensive for what you are getting. Hopefully the price will drop in the future somewhat.