As to Dolina's graphs about overall numbers... annual sales (top) bears a striking resemblance to annual POTN posts (bottom), even though I suspect the underlying causes are quite different.
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forum: Photography Industry News
Some time ago I did a survey on all the photo forums I participated in and I the poll results was that over 80% of all members were born prior to 1980.
Largest group are baby boomers.
No big surprise as they have the largest disposable income photo toys. 
I also took a look at the top 20 most prolific users on POTN. A lot of them last logged in before 2020. So they've been absent for 3 years or more.
As smartphones are replaced every 2-4 years with better cameras it makes almost all point & shoots redundant.
Only working photogs, photo agencies and enthusiasts who prioritize their spend on cameras are buying.
DSLR bodies have not received a product refresh since 2020. Only mirrorless systems get any R&D money anymore.
Those waiting for the replacement of the 2020 Canon EOS R5 body will have to wait for as late as July 2024 for an announcement and November 2024 to be on the shelf.
Odds are it may appear with the EOS R1 that was designed for the July 2024 Paris Olympics.
5-Series bodies have a 4 year refresh cycle.
So at most a 20 month wait.





