Yeah I got super lucky to get that monitor for the price I did!
I know, the 3rd and 4th player probably don't need that many buttons, but that is the way the control panel kit from North Coast Customs came. I haven't really finished putting together my game list yet, but I figure there will be some N64 games we may want to play that will not use analog and will utilize more buttons, so what the heck?
Aside from the obvious X-Men, TMNT, Turtles in Time, Rampage, etc arcade games, I need to have Battle Load Runner for Turbo Graphix 16 (waaaay underrated multiplayer fun), same with Super Bomberman for SNES. Then there are the N64 titles. All of these depend on whether or not each will work without analog, but some I want to try on there will be: Super Smash Brothers, Rampage UT, Gauntlet Legends, New Tetris, Bomberman 64. I doubt WWF No Mercy will play very well on this CP, but theoretically, it would play, just might be awkward. My wife is a fanatic for Puzzle Bobble and they have that 4 player one on N64.
It would be nice if NHL Hits would work sans analog. I'd also like to see if Virtua Tennis for Dreamcast or maybe N64 Mario Tennis would work. Other than that, I need to start putting all of the games together so I can finalize the list. I'm only though the 16 bit era so far.