The money you spend does get you 'more'. Better woods, master craftsmen and their staff, hours and hours of time from those highly skilled people, higher productions costs and overheads etc. Whether or not that translates to a 'better' instrument is personal. Probably anything over £1500 is going to be pretty bloody good and should play very well.
I've had some really great instruments that didn't cost so much and my current squeeze, which was very expensive, but is just perfect and I appreciate the fact that all the things I mentioned earlier on apply.