would you rather have to read a book that you get to pick and write a 10 page essay on it, or would you rather someone pick a book for you that you have to read, but you don't have to write any essay?
For me it really depends on how it looks. I'd probably go with the scorpion though because I don't have any and I think they're awesome. It has absolutely nothing to do with the rarity.
Would you rather eat only your favorite type of pizza or only eat Spaghetti for a whole week?