Eric is of course correct. If I'm out of date on anything it's in the buyers favor, ive seen several 120 backs sell for more than that lately and film inserts are hit and miss, i've seen them go $20-$70.
Concerning the price of the hood, the only ones I've ever even seen were in that ballpark. I have not seen one for sale in a long long time.
So I suggest you keep your childish comments to yourself.