Still, you bought a good playing cue for $30...used it for forty years and sold it for $300. That's a very sweet deal in my book. YMMV
I would have been satisfied if I had gotten forty years of use out of it and never had gotten another penny out of it. I would have gotten W-A-A-A-Y more use out of that $30 than I would have ever anticipated.
I guess it's all a matter of perspective.
Maniac
Yes, of course! Any purchase at reasonable existing market dollars that one can get usage for 30 years or more is absolutely a great VALUE proposition- just not classified as an investment , where you sell it at a later date for much greater present value dollars.