As long as the cue is straight, has a sound construction and the balance and feel suits you, price is really not that important.
High end cues are works of art, that's what you pay for. As far as differences between a $300 and a $ 1000 cue, some of it is points and inlays, some is the wood quality or rare/special woods.
The shaft is where most of the action is, so that's where you need to spend some money or atleast find a quality shaft.
I have a Mezz and a Exceed, both wrapless, with the same type of joint. I play equally good with those cues, despite there being a $ 1000 difference in price...