CS5 Master Suite w/discs and valid serial from a reputable seller on eBay still commands $200-300+ which is nuts to me. But, when I realize that I can do all of my modern graphics workflow in this 12 year old software I get it.
I would love to use some of the newer parts of the suite but the functionality of my CS5 still 100% covers my use-case. For photography I've ended up on Darktable, and if I need to manually retouch a photo there's nothing stopping me from a Darktable <> Photoshop CS5 workflow.
As much as I want to love Gimp - I can't. It is outright ineffective and lacks features compared to even my 12 year old Photoshop. The people who continue to tout it as a 1:1 replacement have never worked in a professional graphics workflow.
Also, Procreate is amazing for doing illustrations though - I really wish I had it when I was learning digital painting!
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Regardless, just wandering sharing anecdotes because I relate to your experiences. Hard agree that legacy versions of Photoshop (and honestly the entire suite) are still insanely powerful. I also find them to be way more stable than their newer counterparts. They're just objectively a better financial decision - I bought this a decade ago and I don't have a monthly $50-60 Adobe draw on my bank account.