I build more for myself, I don't compete so it doesn't really matter if someone has done something I want to do already, if I want it on my shelf or want the challenge of doing a particular thing I do it. That doesn't mean I won't chop stuff up and make my own thing, I have about twenty kit bashed/scratch built monster truck projects and a few more 4x4s in the basement now. Some are completely original and others are replicas of real trucks. The way I look at it we are all given the same starting points, the kits themselves, so some similarity is unavoidable, you just have to build what suits you. I even build things for pc games when I can't get a styrene fix, here is the last thing I did. Its over 30,000 vertices and about 50,000 faces, most enter by hand in an old 3d editor.