Well yeah, i tried to sell as many as i could at one time, before the emitter becomes “outdate”. Eg XP-G, XM-L then.
Unfortunately, it’s difficult to sell, even in enthusiast forums or second-hand forums. Unless you drop it significantly, ie close to 50%, for any used light.
There were many impractical lights. Such as ultra big aperture HID lights (extreme throwers), or pocket rockets, due to the fact that it’s alway hot nights here at 29-31 deg C.
Nobody wants them, except some of the pocket rockets maybe.