Yes, things are on the pricey side here, but only with the seafood dishes. Don't worry you will get your money worth, as dishes are of good size and well made.
Be aware, if you order seafood that are not in the standard menu (like steamed fish or dishes made with one of the "by weight" seafood) they do charge a surcharge on top of the cost of the seafood. They have been doing that since as long as I can remember. I think they started because during the fishing season, people will bring in their own bounty. They will then just charge the same surcharge in those cases.