I've always had a soft spot for German cars. I've owned at least a dozen VW's over the years. I've never owned one newer than 93 though. 3 were snazzy beaters, 1 was my "shop truck" with a stroker motor that liked ripping up stock clutches

...but most of them were just fun little daily drivers...
The basic 4 cyl engine casting was shared so well through the generations, engine swaps were easy...
I think the best reaction on ppl's faces is when you are cutting into a hard corner and the inside rear wheel lifts off the ground...That's on the GTI's mostly, I never got either of my Scirocco's or any of my Jetta's to do it. But all of my hatchbacks did. Worked on and helped work on my share of MK3 n 4 cars...
A decent 150 pc tool set + the aforementioned Triple Square bit set, and a fella can have one of these cars apart in a weekend.
I have also heard of the MK4 slushbox woes, essentially if you take it in and get the auto flushed, you may have signed it's Death Certificate. BUT every brand has their quirks and issues.
I've a buddy who imports cars from Japan, and he's brought over some really nice VW products from there. Low kms, usually with aftermarket bits like wheels n exhaust, and in rust free shape...He keeps tempting me with newer models lol...I'll stick to the older ones. At least those I can still take apart without much fuss or worry about expensive computers etc.
I do have a friend in town, who's got a bit of a dismantling yard up at his farm. If you're looking for specific stuff, let me know, I can always ask if he has parts.