Hehehe. When I first read the title of this thread, the first thing to come to mind was NARC. I remember the first time I worked on one of those, I was astonished at the vast sea of ROMs in that thing. IIRC they're all 2764's. Now, that game came out in 88, and I'm positive that larger capacity ROMs existed back then... It must have been cheaper to use piles and piles of 2764's though. Maybe they were getting a really good deal on them or something.
-Ian