There's just too many reasons, I could probably write a 300 page book about it if I got carried away. For now I'll just do the First and Last.
The first thing that got me interested in them (1983) was the fact that their singles were long and had a lot of different sounds going on in them. No one else did 12 inch only singles at the time, so they were played rarely on the radio always leaving you wanting more.
The major repeating reason why I still adore them is that just when I think that they're too old, 'semi-famous' and 'comfortable' to create some kind of genius again they go ahead and do it to spite me. When I first heard Fine Time on a tinny radio I thought they'd blown it and jumped on the new Acid House bandwagon, then a week later I heard it in a club and immediately changed my mind. When they had their first solo projects break I thought muso-phase was reached, they bounced back with Regret. When they did the big split for 5 years I really thought that was "Time Gentlemen Please". And then Brutal turned up. It's bound to happen again.