My Rant ...
Short of it ... No, not dying, and no not "too expensive" ... Changing yes (dying no). .... EVERYTHING is going up in price -- it is just a case the dollar changing. (A 1970 dollar is now ~6 or ~7 dollars. So something you bought in 1970 for $5 is now between $30 and $35 -- stop comparing 1970 to 2020)
Magazines are dying across the board (not just 'hobby mags')
Storefronts are dying/changing across the board (when was the last time you went to a butcher shop? )
Is it as prevalent ... probably not -- I would argue that it is 'leveling out'. There was a huge increase around the 70's , but now it leveling back to a 'sustanable' level.