if you just wanna sample games just play mame mang, costs less and if you have a cab you will be less tempted to soak up all the fun out of the game untill you have it on legit hardware. I personally don't really give a shit about piracy of the neogeo at this point, but if you get 161 new games in one shot you will likely just jump around the game list and not really dig into one game and really soak up the experience. If you buy one game now and then, you get excited for that game, then you play it like a mofo because it's all you got, then eventually you get your 1cc or you get bored or whatever, then you grab another game
The neogeo doesn't have a huge library, but it has alot of games that are really deep, no reason to rush through them and waste em if you went this far to get a nice cab and everything
but that's just me, many people have indeed spent the years putting real time into almost all the neogeo games, and having a multicart is just real convenient or cost effective.. I hear that... but for sampling? i think it will just oversaturate you with games.