My Father used to always say; ' it's only worth what someone is willing to pay"......personally I think starting the auction @ $9.99 and letting run for 7 days, would reveal the true value of this game.With that being said,one really needs to look at the collectibility of Vectrex stuff.Yes,the Vectrex console is gaining popularity nowadays,but $3500 or anywhere near that dollar figure for a rare cart is, in my opinion, a really bad investment.An average blue collar guy like myself can buy a really nice preowned Rolex Submariner for $3500.....or a week for two @ a Sandals resort in Jamaica.Yes,I'd love to see this cart fetch $3500 for the seller,but one has to be realistic,....is there a Vectrex collector out there with that kind of disposable income this day and age?.....it would be interesting to see. I know if I spent that kind of cash on a game....my wife would kill me in my sleep.....