They aren't reliable cars, as much as VW would like you to believe they are. I had 2 tuned SAAB Aero's which are crap by those who think they know about cars, and they were waaay more reliable. A lot of people on here have low mileage examples, or replace bits such as wheels/suspension etc. before they have chance to do one.
So far I've replaced... drum roll please, Throttle body, Cruise control, Alternator, Window switches, Drivers lock mechanism, All wheels corroded, boot corroded, wheel arches corroded, stalk, drop links, wishbones, Alarm siren, CV joint, intercooler hose, PCV, coil packs, more DV's than I can count, front wiper motor, rear wiper motor, rear badge corroded, rear calipers seized, cam follower (albeit preventative), gear linkage... and more that I've forgotten no doubt... if I'd gone to VW like you, I could have bought a 996, but alas I've muddled through it all myself as DIY's.
Edit, to add more bits I've replaced.