Most likely you have to buy "Honda" brand parts and accessories which points to one of Honda's short comings; very limited selection. Tall windshield, center stand, luggage rack, heated grips, fog lights and passenger backrest are about all I can think of that they offer. Most of those items are also available (and better/cheaper) in the aftermarket. Honda offers no highway pegs, belly pans, cup holders or seats, and I don't know if they even have helmets and jackets that are branded Honda (my dealer doesn't but some might). The Honda and Goldwing apparel I have seen is actually private labeled by aftermarket distributors.

I would use some of it to buy several oil changes worth of oil and filters.