Thorns are always more expensive than you think - it soon adds up if you don't have the basic spec. £2000 is what you might have to pay and the bike is, more or less, new. However, it is second hand. I don't know if that as-new Sherpa is still unsold. My guess is that it won't get its price. It's always the worry that if you buy a brand new bike (or car!) you will lose a lot of you sell it too soon. It will be interesting to see what happens.