I've seriously considered it from time to time.
Consider this:-
Take a perfectly good (if a little rough) R65, remove the instruments, mudguards, original lights, air cleaner, mirrors, centre stand and seat.
Paint it a ghastly colour (like "colonial brown", fit an after market "chopper" style speedo (who cares about accuracy) Chinses head and tail light, pod aircleaners, "cafe" seat and whatever cheap and nasty block tread tyres your local shop is most keen to rid of this week.
Then wrap the headers in dirty brown fibreglass, remove the reflectors and black out the forks, wheels and final drive.
Viola! now advertise the "masterpiece" you have just created and sell for $US5k.
Wait quietly a few months and then start selling off the stuff you removed on Craigs list or ebay.
Quite likely you will be sellign to the subsequent owner +1 of your bike who purchased a monstrously bad "cafe" conversion real cheap and is now hunting the bits to turn it back into a motorcycle.
I reckon you would make $5k from the sale and at least as much selling the original equipment.
I'm tempted, I really am!