if you bought just for your own enjoyment and you know you have the original what would it matter to you if someone copied it?
It matters because you paid a premium for the fact that it was/is a one of a kind. Just because you don't brag about them or show them off doesn't mean you ant them to diminish in value. Sometimes the reason you like something is because it's unique. The point is it's yours and you have the right to do what you like with it. Maybe you bought a 1 of a kind as an investment, keeping it one of a kind helps it's investment value.
do you throw a way the one of a kind cues you might have because someone makes a copy?
Nope, I don't think you would, but why should you be happy about it and why would you increase the chance of it happening?
do they bring you less enjoyment?
Read above, I say yes if you bought it because it was unique or if you bought it and paid a premium for it due to the fact that it was a rare cue.
most people like to share things that bring them enjoyment to possibly bring enjoyment to others.
Please be smart enough to speak for yourself. Saying most people is just stupid. MOST people do not share private collections, I can point to the top 10 collectors in the world and MOST people have no idea what they own and have never seen their cues. Dr. Wu being the example rather then the rule, and please keep in mind he has most the cues for sale. Lucky has a site with cues for sale, but those aren't his collection, you will never see his collection.
why pay big bucks for a cue if it can be easily copied?
You just aren't informed enough to know that in this day and age most designs can easily be copied with the aid of computers, the exception is the artists like TW or Schick & Reyes, guys who do things by hand that requires great skill. But for the most part the execution isn't as hard as the design, and stealing that is where the problem lies
why would a cue maker take the time to come up with original designs if they can easily be copied?
Because they are artists and it's what they do, they expect that other artist will also have the pride to want to create something original. they don't go in thinking "I'd better not make something nice or people will copy it" In this day of computer CNC lathes and programs they can take almost any cue and scan it and the computer will work out how to do the copy.
if everybody thought like you there would not be any art to enjoy.