We (well my dad) just bought one for bashing round the field. He got it off ebay for about £600 I think it was. It's a J or K reg (can't remember and I've just driven it tonight!). The prices for the newer models though were sort of £1000 to £2000.
I think eBay is the best place to look at if you're wanting to know what prices cars are actually going for. Because if you look in the local paper or on Autotrader, you just don't know whether the price that cars are advertised at, is actually achieved.
When I was deciding what to do with my old Fourtrak, whether to get it repaired and through its MOT, I decided it wasn't worth it based on its value and the fact that bits kept breaking off it
I sold it to a friend for little more than scrap, it was a K reg ..... bye bye beloved Fourtrak