I already have a low deflection shaft but constantly wonder if it was really worth the $235 I spent on it. I love the way that it plays but all the old pro players didn't have low deflection shafts simply because the technology didn't exist at the time. The old pros seem to have done just fine without some high end shaft and arguably played even better than todays pros. I know this is a bit of a sweet area to talk about but I would enjoy hearing others input regarding the subject.
Do you shoot like a pro with a regular shaft? If yes, then go ahead and switch to one. There is no "worth it" in equipment especially with shafts and tips. If you can play as well with a regular shaft, then play with one.
You figure out if you want to use an LD shaft BEFORE you get one, if you play well with it, then it was worth it.
It does not matter what the player next to you uses, you did not learn to play like he did, he does not know to aim like you do.