I dunno.
I'm happy with my K1, which I bought new in Feb. 2017 ...and my K5, which I bought new in November 2011. I haven't been using my K5 as much over the past few years (since I got my K1 and NOS GR ll), but I was out at a car show this past weekend, it looked like it was going to rain , and I had my K5 and 18-135...both are WR...so I wandered around on the farm (where the show was) for an hour or so, taking pix with my K5.
For a well used camera that is over a decade old, I was surprised how good my K5 is...pix were great. In the field (literally
) was changing ISO , F stop, shutter speed, light metering systems regularly...and the K5 was responding very well...judging by the end product...the images.
Given that I started photography, back in the late '60's and was using basic , no meter cameras....Pentax S1a, Mamiya 220 TLR's...always using hand held light meters...with no way to check my work...till after the film was developed...something as outmoded as my 11 year old K5....has so many features over and above what I started with...to me...is a camera that does everything I want/need amazingly well. In the late '60's, early '70's...my camera equipment were working tools, which helped me earn part of my daily bread.
I haven't tried the latest, greatest cameras out there now...like the Canon R series, the Nikon Z series....but I wonder....do I really need that new level of camera. I don't get a lot of missed shots...now, including taking birds in flight, drag racing events, etc.
When I'm working with my K5, K1, GR ll...how much 'right now' technology do I...or ....others..... really need.
My view is that is do you need it...or do you just want it ?