Just a quick search on the internet and I found the motors running from $96 to $122. Those are for remanufactured systems.
As a side note.... Not too long ago I had to replace the window motor (sometimes they are called "window regulators") on my 2000 Chrysler Town and Country. The dealer wanted almost $300 just for the window motor. I called a large salvage yard to see if I could get a used motor. They said "we will do you one better, you can get a NEW aftermarket part for $80 from us". The only difference between the Chrysler and the aftermarket was the aftermarket didn't say "Chrysler" on it.
It took me about 2 hours to change it out and I saved myself at least $300.