I agreeI'm not surprised that this thread has gone 10 pages so far with no sign of ending soon.
For me, I think there is an industry surrounding pool that is very similar to golf and a few more sports where there is a lot of amateur interest. We all want to golf like Tiger or Arnold or shoot pool like SVB or Fedor. The marketers know this and manufacturers respond with a never ending merry-go-round of new products that promise to improve our games to those high levels we dream of.
The truth is we would all be happy to play like Willie did or The Miz and they achieved what they did using basic gear. No CF or Keilwood was needed nor was any 4th version chalks. Look at how Efren tortured the world with his $15 cue. Good marketers make us feel like our games will become like the elite pros if we buy these new gimmicky products.
I try real hard not to be a "sucker" in all aspects of my life. I know there is nothing that will get my game to SVB level or even A level for that matter. I do, however, play with a kielwood shaft from a local cue-maker for one simple reason. I tried one and really liked the performance and feedback it provided and so I ordered one and am very happy with it. Did it improve my game? I don't think so but it did improve my enjoyment while playing and that was justification for me.
And although I know it and I know that non of the equipment I have will make me a better player, might even do the opposite… I still like to try new things and spend some of my hard earned money…
Also, back in those days that you mentioned, a new wooden shaft would go for $10 - $20 and not $250 - $600… so getting a shaft that has longer life span sounds like a good idea to me.