you dont understand how bmxmueseum works. I have been in bmx all my life and had a bunch of old stuff that i though was garbage. A friend told me the same thing and i tried it. Ended up selling a pair of dry rotted bald tires to a guy for $80 and a pair of forks from an early 80s mongoose for $100. Id try it. It couldnt hurt you in any way. I have no clue what your bike is but i seen big POS's sell on there for tons of money.
Fat old guys like old stuff, whether you think its worth anything