IMO, its probably about right. You realistically only get probably 40% of what the deer weighs from a butcher. Some places don't spend the time getting out every bit, they don't have the time.

I've butchered hundreds of deer, and I can tell you from experience if you are getting 50% of the dressed weight you are doing good. Adult does in our area avg 80-90lbs dressed, we probably net about 40lbs of clean boned out meat if we get it all. Hide, head, bones, and blood weigh quite a bit. Smaller deer have almost no meat on the ribs, we don't fool with it.