OK sarcasm doesn't work on the web. I'd love a Boxster or Cayman one day, but the thought of a rear main seal or shifted liner scares me E36 M3less. 2001 ish Boxster S's are easily affordable now, well they would be if I wasn't paying for kids school bills, but a non reachable and non rebuildable engine gives me the willies.
But seriously outside of the average auto enthusiast which represents 0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001% of the automotive public, why do you need engine access?
It's fine for the Miata's or Mustangs of this world, and my C30 obviously :) But for you average mini van, Turdbota Crapry, Honcrap Crapcord, or other E36 M3 box, as long as its runs for 100K miles everything else will be so crapped out it's off to the scrapper before anyone needs to do more than change the oil. I can really see this being the norm within 10 years.
'Enthusiasts' cars are different, I remember seeing something a few years ago that indicated that something like 20% of Mustang's were modified by their owners within the first year. Most of that is new shift knobs or stickers, but there are a lot of people who 'really' modify their cars. You wouldn't believe the number of 8.8 gear set's get sold for rear axles. Those cars will keep their hoods, but why bother for an appliances?