I think you are just talking to talk. Here is why.
1. Balance. It does matter because some cues have forward balance, some have balance towards the back and some somewhere in the middle. So, if someone is used to or likes forward balanced cue, he is not going to be happy with the cue balanced towards the back. And vise versa.
And yes, if i am spending more than $500 on a cue, i would want to get something that i can comfortably play with and not waste the $$$.
2. Weight bolt. Adding or removing weight also changes the balance of the cue. Lighter bolt will change balance more forward and naturally heavier bolt will move balance towards the back.
So, by adding removing weight, you are also changing the balance. But i am sure you knew all that, just did not think about it from this point of view.
And again, if someone is paying good money for a cue, do not you think they should get something they like, without having to run around and pay to have something changed?
So, yes, "there are tire kickers everywhere".