They aren't cheap, but they've had major problems. I've had the motherboard/GPU replaced twice due to overheating. I did receive this one as part of the first batch into NZ when I bought it so its done plenty of miles as a partial desktop replacement!
But I did clean the contacts as the first thing I did, to no avail. The cost of a replacement battery for it is NZD$600 from Dell. There aren't any cheaper on NZ's version of e-bay either...
Next laptop isn't going to be Dell after this one.