Used bizz jet inventory and priceInventory has gone up, mainly turbo props. Asking price is going down but value of used bizz jets are still higher then last year.
I think new jets are pushing older jets with higher maintenance cost out. OEM has been delivering record high of new jets recently. Not as high as pre 2008 but higher then post 2008.
From https://www.ainonline.com/aviation-news/business-aviation/2023-01-09/used-business-aircraft-inventories-climb-values-slip