Sometimes the other guys in our modelling club will jokingly give me a bad time when I build something different (we are mainly an model car club), and I'll usually hear the typical "but that doesn't have tires on it". lol
When I find something that interests me, I'll get the kit and build it. The only thing I haven't really tried is building a full custom yet, but hopefully some day. Just too many other kits to work on right now.