Originally posted by tibbitts Are you saying not feasible because the cost, even every 10 years is now so high as to prevent upgrading, or because you're being forced to upgrade more often than every 10 years to maintain compatibility with new components you want (KAF4, for example)? If you discount the film era, bodies certain seem to have a longer fairly competitive lifespan now. Today I can come closer to satisfying results with a ten-year old body (K-5, in this case) than I could have five years ago, when that 10-year old body would have been what... a K100? For my purposes, assuming I stay with Pentax, it will probably be KAF4 that eventually kills off the K-5, not the quality of the image output.
In March 1983 I purchased my Pentax “Super Program”, which I used until I purchased my Canon EOS Elan in August 1995
to get auto-focus, which lasted until November 2007 when I made a purchase
to get a
Digital Canon Rebel. As far as I know, both of those film bodies still work today, and their life guided my expectations, so I was disappointed when that first Rebel died in October 2013, after a series of problems that probably indicated processor problems. Since this was unexpected to me, I purchased another Rebel, which lasted until May 2015 even though I dealt with apparent processor problems off-and-on for almost a year. I realize now that I had the possibility of upgrading the ‘sensor’ in those film bodies, so now I think of a digital body as a computer with a five year lifetime - but now at 73 my current KP may turn out to be my last body. So, this is a combination of money and of change in technology.