The prices for paint correction/detailing sounds expensive mate but if they are good, what they can do is amazing and takes alot of work.

They measure your paint thickness to ensure they wont go through, they use different pads and compounds depending on paint hardness and the level of cutting required to get the paint perfect and swirl/scratch free.

If you check out detailers world you will see just how much goes into it, then on top of the time spent, you have to look at all the products used.

It really is value for money IF you intend to keep the car, the paint is generally good but needing a boost. With some good products you can then keep it in top condition. I have played with da's, i have one, but even so, I would still consider paying out to have the car proffessionally done.

check out this guy, not for the car, b ut how bad it was and how it was turned around, he does a few on here and its always good work

http://www.seriesoneturbo.co.uk/showthread.php?t=12899