I'd not use the table service for Beach's n Cream, definitely - not when you are paying $38 that day for meals. I'd at least go somewhere that you can break even, if not someplace special that you might not otherwise go.
DH and I love B & C too but we are only going to use one TS credit and share....we'll likely get onion rings, a burger and a sundae....the sundae is so big that we would never be able to eat a full meal on our own anyway....we've split in the past and it was more than enough food for us....