$85 per month, October - April, unheated warehouse storage with other boats and cars.

about what I charge...$5-600 a season, which is 7-8 months here. Clean and dry, cement floor, at my place.
I prefer under 30' ers as it's just more lucrative per sq. ft.
always full, actually I've had practically zero turnover and turn enough away to fill another building.

I pay $185/mo to keep my boat on a trailer out in the open with min security....that is during the summer months though...during the winter it goes away inside!!

$250 October to May