I have been flying the same flying school 1979 C 152 off and on since 1979, first as a PPL renter, then CPL and Instructor student and as an instructor. When I first flew it, it had 220 hrs total time, it now has 19,700 hrs and with a relatively new paint and interior refurb, looks and flies just fine. The flying school has planned to keep it to 25,000 hours and then reevaluate its future.