In late 90s/early 2000s (around 1997-2005) the standard practice was to go to a specific marketplace in the city to get games and software for $6 - $7 (around 25 PLN); this was a standard price for a CD of anything, the content didn't really matter. I was a kid at that time, so I don't remember how it was before. Maybe we had a floppy market as well; someone older would have to chime in.