at 24 i had an m3 (paid off by then) and was making payments on a 996 carrera. i just really liked cars.
the intangible factor: got it out of my system. most people i knew (who also really liked cars) have been and continue to lease/trade-in every few years.
i stopped making car payments when the lease on the 996 ran out, and haven't seriously considered getting another car since.