Hi, I not sure that £160 is a bargain unless it's mint. I just bought a GT STS1 an XTR groupset in mint condition for £350. If you really want the bike then buy it, £160 for a good bike is nothing, but don't buy because you think it has any real value. I've been collecting and rebuilding GT's for a few years and have found the only ones of value are USA built ones like RTS1's, LTS1's or pre 98 Zaskars. An LTS 4 was a low end model with a low spec groupset so not worth much and wont appeal to many buyers, an RTS3 didn't get much higher than £30 on ebay recently. Buy it to ride it, but not to become a classic. Don't look at ebay to try to work out a value, because the price that someone wants, is not the real value. There's a few LTS3's on for £500, I can't see that happening.