being a man who learned from his old man who's a mechanic makes your point moot.
im biased because i work for an aftermarket warranty company. bmw's in particular account for 10% of our sales and 20% of our claims costs; outside of the jacked up labour costs because of stupid minor shit that takes a million hours to get at, parts are just a pain in the ass to get at a decent cost.
there's also the issue of secondhand luxury car owners generally being ten-dollar millionaire assholes with an entitlement complex, but that's just because i deal with the cranky ones on a daily basis...
here is an jetta-el-camino daddio and i chopped up. tdi of course