For example, I bought a Hyundai Elantra back in 2001, and part of the weird appeal to me was that unlike a Honda Civic, there wouldn't be anyone interested in modifying something as pedestrian as an Elantra. Then I joined a Hyundai Elantra forum full of tinkerers - who take full advantage of the fact that Hyundai posts their searchable tech manuals online for free. Because of this open manual and enthusiast community surrounding a car that is unremarkable except in its longevity, I was able to change my own thermostat out, not to mention the dozens of minor suspension and interior tweaks I've made.
It's not that there's less joy in the ride, it's just a different kind of joy.