It’s not even been an issue of money, really. And it’s not just Adobe.
I’m more afraid of the long-term effects of software rental SaaS. I wrote about this long ago… http://www.badcat.com/journal/software-rental-a-cautionary-tale/
What happens if you skip a few versions? Will your files open? Is there a way to save back to a previous version? Can the newest version still open files from 2+ versions ago. etc.
Time will tell — but I’ve been fine so far with the perpetual licenses from other various software.