Yes, mechanical SLRs seem to last more or less indefinitely.
I doubt that many current cameras, SLR or otherwise, with touch screens etc will still work flawlessly in 40 or 50 years time.
@ChasnotRobert started
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Yes, mechanical SLRs seem to last more or less indefinitely.
I doubt that many current cameras, SLR or otherwise, with touch screens etc will still work flawlessly in 40 or 50 years time.