The Contemporary does not have a Spa within the resort.
The Grand Floridian (a monorail ride away), Saratoga Springs, and the Dolphin do.
I'd say all 3 are similar in price (and yes it's a steap price) and the quality is pretty decent. You can view offerings of each spa online through the disney website as well.
Some of the resorts that don't have Spa's, do offer some spa services I believe. I don't think the contemporary does though, so you can just take a quick ride to the contemporary.