the Cessnas , whilst being a robust and proven design, are more than a little dated.
I would be amazed if the thinned-out fleet were to appreciate significantly in value, as a result of the new inspection regime.
Those of us UK residents old enough to remember the introduction of the car "10-year test" , know that the scrapyards became full of Ford "sit up and beg"s ,Morris 8's Austin 7's and the like.
These scrappages didn't affect the market significantly,it just meant there were less "sheds" about and the second hand car pitches had fewer old heaps.
Those who were in that end of the user-market, were "tail-end-of-life" users...running on a shoestring.......they probably downgraded to a motorbike until their finances improved .
The person who could really afford to go motoring was not affected one jot,
This situation is virtually a parallel.
Can't afford to bring a clapped-out spamcan up to the new standard? scrap it (or flog it to a mug! ) then buy a permit-aircraft / microlight / parascender or whatever lower-cost of aviating presents itself.
short-term, prices will drop as the spares-market saturates, the surplus will slowly get absorbed and the values of used-items will stabilise.
Again, I remember the "gov't surplus " shops selling brand-new , boxed flight -instruments for absolute buttons money,- after all, there's a finite number of people who want ,say, an attitude-indicator on their mantlepiece, as an ornament.