Gotta look into it again. Last time I checked -- around 2012 -- it was around $600 to maybe get the files off, no guarantees. I think if they can get the hard drive to spin, they can get the files. The disc isn't physically damaged.
If it’s clicking, they have to open it up in a clean room and replace parts. Cost is obviously way up there.
Otherwise, it’s possible to get the data off at home, but I wouldn’t risk it with irreplaceable data. We got some off of flooded Katrina drives, but those were always risky.