I just sold the wheelset from my Windsor Hour (same as yours) on Boston CL for $75

They went in a day. I probably could have gone $100 for both, maybe.

$150 gets people a quality wheelset from Bicyclewheels.com, so why would they buy yours for a similar price?

I'd say try $50. The stock wheels are no great shakes. They're OK, but you can get a similar set off of Bike Island for like $89.