In reply to BigHairyIan:
I definitely think that there is an element of self-fulfilling prophecy at work. For example, some of the routes with loads of ticks will be the lower grade routes, or the polished warm up routes, or the single pitch route among the multi-pitch classics.
Having said that, if people talk about routes, then I am inclined to have a go to see what everyone is talking about. I'm the same with books, music, and films. It doesn't mean I like them, just means I am curious and can have an informed opinion!