Two weeks ago a Renault Dauphine in a poly bag was sold for 35 euros, this evening a Ford Capri found a new owner for 75 euros (1 euro =0,89 pounds)!
Who are these people who spend so much money for a simple kit? Are they kit collectors or do they really want to build this model?
Collectors in all probability. In my experience most builders are very price conscious (tight if you prefer and I include myself), although that doesn't mean to say they might not push the boat out for something they'd really like to build.