Remember some people are 'economical' with the truth when it comes to "what did you pay" threads, a bit like the "best mpg" threads... and NOBODY is ever going to post that they paid £12,000 for a 53 plate JDM with 100,000 on the clock are they
At the end of the day if the price is right for you then go for it, you will always find someone who got a better deal and someone that got a worse deal, thats life. If all you do is fret about getting the best deal possible you might miss out on the car you really really want.
How many times have you been sitting round a pool on holiday trying to relax and catch some sun and all you can hear is some **** going on about how he got a fantastic deal and saved x amount on his 2 weeks summer holiday. If all you can do on holiday is go on about how much it didn't cost you then some holiday you are having....NOT!