Wait ... people paid what for Ben & Jerry's on board for a scoop or two of ice cream? You could have brought a gallon for that price at the grocery store, right? I'd buy that in a heartbeat because I want it. Could care less what they think, my money and you will see parents splurge to get it for their kids, some may even share it.
You should see the prices for Serendipity in New York, their prices will make your eyes pop for $32 and it's just for a sundae. Sometimes in life you need to just treat yourself, you are on vacation, right?