I used to buy off the $9 rack when computer stores were still a thing. I do it at amazon, at steam or directly now.
I did spend $30 on Kerbal Space Program a couple of years ago (still play it) and I bought GTA V almost as soon as it came out on PC. (still play it).
After hours of frustration in Wizardry on an Apple ][+, I found an article about hacking the characters with a hex editor, and did so. That made the game much more playable.
The Ultima series was my favorite. I played the precursor, Akalabeth: World of Doom, and Ultimas 1-4 on an Apple ii of some sort or another. I owned a MS-DOS system (12Mhz 8088) for 5. It took forever.
Sid Meier's Railroad Tycoon had this bug where if you went far enough negative in cash, specifically 2147483649. The value of the Available cash variable was limited to 2147483648 (4 bytes). As far as the game, the computer, or both were concerned, 2147483649 = 2147483647. This only happened when you tried to do this. Normal play would result in you losing before you ever could ever establish that kind of debt. Needless to say that little glitch turns things around pretty quickly
And Civilization! "Our words are backed with NUCLEAR WEAPONS!"
Thanks for the trip down memory lane!