Think its got something to do with it being so different from the classic, although they have gotten bigger, the basic saloon shape has stayed. Makes for easier transition because its easier to see the much loved shape within the newer cars.

Also think part of it is down to the hatch not living up to many enthusiasts expectations. We were all wanting more from it, from the moment it was announced, everyone was thinking it would be a game changer! didn't happen

That said, I too have a liking for the hatch now since people have started modifying/enhancing them, there are some excellent examples floating about.......

just my opinion