Try doing a history on eBay of these bikes and the add-ons they carry and what they sold for. The add-ons never get you the retail or even close to what you paid for them.
People that are buying one of these bikes for the first time do not know what you paid for doo-dads and even telling them "I've got $2000 of accessories!", they will probably say 'so what?'.
The smart thing to do if you are selling is return to stock, get the best price, and sell the aftermarket parts separately.
Quote:
book value only matters if you are trading in or claiming for insurance
I'm not buying that. When I shop a used vehicle, the book value is the FIRST thing I look at. Gives me a baseline.