last time I played New Vegas I just grabbed the only modpack from wabbajack that didn't also require Fallout 3 and while it was overall a pretty good experience, for some reason the author of the modpack decided that luck influencing gambling wasn't part of their vision for the game and disabled that. it was easy to re-enable it, but to this day i am baffled by their decision. like if anything, high luck characters being able to break the bank of every casino in vegas is one of my favorite things in that game, just disabling that makes all the gambling minigames completely pointless.