I agree with Luis, I know guys in my club that have built kits that I have seen on Evil Bay going in excess of 2 and 3 hundred dollars... My thoughts are rather simple, if it's in a box or a bag I will build it eventually no matter cost or collect ability. I am not a collector, I am a builder.
Sadly collectors have taken some really great kits and set them on a shelf just to sit in a box, I want to have the fun of building it and if I mess one up, oh well, just fix it and go on to the next one...