Well, what I like about cartridge games is that the old high score stand their ground (providing the internal battery doesn't go kaput like my Columns cartridge, sob sob) - so when you buy preowned games, you're greeted with the old owner's scores and progress files, much like I did with the Kirby's Pinball Land cartridge.
Mwah ha ha! Take that Matthew and Vicki! (I assume you're the couple who sold me the game.)
And yes, I know that's not a brilliant score. I don't even think I managed to beat any of the bosses on their respective tables. But let me have my petty victory. :P