You will probably get a better deal on a trade in from your dealer against a B&O upgrade than a private sale. These don't sell for very much these days - @$400 to $500 I would guess depending on condition.
Sell the remote seperately to get the best price, it will be worth $75 - $100 on its own & won't make much difference to the sale price of the 2500.
You could offer it for sale in our sales section but minimum silver membership is required for posting sales on Beoworld.
Chris.
The use of metaphors should be avoided like the plague. They're like a red rag to a bull to me.