As the saying goes "There is a butt for every seat"
...
1 - I dont think u can make a profit off them on ebay unless u find a dumb buyer.
I am surprised by point 3. This thing is fun for awhile and after that it is just dealing with heat, noise and electricity lol
I guess to each his own.
(Moderator's note: This post was edited by frodocooper to trim the quote from DaveF.)