The sad truth is that your precious cues will be worth nothing, or at least next to nothing compared to today.
In the US and Europe pool is dying out. The recruitment, even viewed optimistically is
Why think about unimportant things?
You will never make money by selling something you have owned - you make money by creating value - i.e. working a skill others do not have.
I do hope that the crap cues wont be worth a shit! Why should they? A used good is a testament of something made in the past times.
It can be a good example or a bad one, however you like.
And development also goes in waves, so not everything new is always good.
Also cue making is not some secret skill. In fact I will gladly attest Mezz more skill than any cuemaker in Europe.
And be happy that we finally have Cuetec - one of the first companies to come out with a insanely robust and good (LD!) product for adequate money (190EUR for the R360 is still a lot!) and a lot of people can afford a really nice cue, finally.
A product like this was needed, no need for this romatic, elite view you're having on cues.
Pool in Europe is not dying out. In fact it's growing, with lots of young people trying it out. What is dying out, and luckly it is, is this crap backroom gambling shit. But you can have a friendly chat and game at any time you like.
Ivory? Never a good choice, it was just something available, and then the man-made materials took off.
Rare woods? Why? Almost all woods look good one way or the other.
We live in fantastic times, there is no real problem anymore. You can buy food and cues and cars in all shapes and prices, anytime.
Forget the romantic stuff about rare Balabushkas. A 2015 cuetec can do the same now. And that's good news.
We've also advanced with playing technique that it can be easily taught to newcomers. No need for feel or natural talent anymore - and this again is good news! People can learn the skill they would like to learn and be reasonably good at it! Wonderful!
Forget the elitism, don't try to be better, and start talking to people and have a good time with them. Maybe you also can teach them something that will help them.
This is the most fantastic thing to do in your life.
Life's good.