Talk:Rarity Takes Manehattan/@comment-1023843-20140830052018

There's one thing about this episode that I still don't get. In the scene where Rarity buys Spike a carrot hotdog to thank him for carrying her bags, why didn't she just let him eat the gem she gave to the food vendor instead of spending it? After all, he probably would've preferred the gem. Was it just to fit in with the New York theme or are there certain gems that are used for currency and certain gems that dragons eat?