I just came back from my first fitting - eeee! I have to get straps shortened, the side seams of my dress "reworked" (the silk is puckering), inner lining hemmed, and an 8-point bustle. It was $500... Which seems crazy expensive to me.
I don't mind as much because I paid very little for the dress (a sample bought from a salon online) and the tailor clearly knew what she was doing, but I'm curious about what others are paying. FWIW I'm in Boston and my dress is all silk.