gotta say a big reason for me is the whole underdog thing and the fact people who know cars will know how much fun they are! its not about being comfy and getting from a to b as fast as possible its about the journey and making me smile!
even my mate in work gets that altough he still takes the piss because hes a die-hard jap person- I made his dc5 work to overtake my rst last time it was on the road though and he was pretty suprised at how well they go once there upto speed even at quite a low state of tune
I also enjoy back to basics and home tuning, lots to be said for a car that needs you to know so much to get the best out of it