I've heard good things about the cheese boards/samplers..but keep in mind, they're tasting portions. They're not meant to fill you up, only give you a nice taste of each cheese offered. Most guidelines for serving sizes of cheese will say 2oz of cheese per person TOTAL, not 2oz of each cheese. An ounce is approx. the size of your pinky finger.
Also keep in mind that most of the cheeses offered are cheeses that retail from $10 to $25 a pound (I work in the specialty cheese section at a grocery store in the Northeast so I know most of the cheeses offered and their price ranges) So while those little portions don't equal out to "price per lb" and what you're paying for that plate, you're paying for the look of the plate and the ambiance of the restaurant and all that fun.