I'm totally happy with VAG, the cars have never let me down, though the Audi S2 was a bit of a money pit due to it being in its senior years (120k on the clock). Sure was an awesome drive at the time.
The Mk1 Golfs were unsophisticated fun and over the years I had them (89-01). I had them so long and they were so reliable they only cost me tires and exhausts.
The Toledo V5 was a nice cruiser and it was family circumstance that made me buy it. Had it remapped and it went pretty well. Loved the full leather and electric memory seats as did the wife. In 05 bought the Leon new, its probably just run in having covered 35k. The engine is nice and torquey so great off the line and is an effortless cruiser. Handling is decent though on Bucks roads a bit harsh because we have some of the worst condition roads in UK (or at least it feels like it!!).
So really there's no sensible reason to get a Z... but then I'm totally smitten and I reckon it would be a second car. Also need to buy a house, likely next year, specially given prices are returning to a more sensible level. Now the hard part will be keeping myself under control until the time is right. ;-)