i missed out on a Mint boxed saturn with leads, standard controller and analog controller. posted a want it on ebay and this was offered to me, it would have only costed me £15 plus postage but because of a lost email to the person who was offering it to me it was sold on. Still not got a saturn plus i missed out on a good condition PS1 in a mint looking box very cheaply when they were still quite new and expensive but i was young so money was a problem and by the next 1/2 days when i went to get it Gone
Japanese model 1 mega cd. It was on ebay going for $20 U.S. Even sadder was the fact that it was located in the same city as mine.
Panzer Dragoon Saga. I got the first disc free with Sega Saturn Magazine (UK) and got House of the Dead first instead. By the time I had the cash for PDS it had sold out EVERYWHERE. FFS.
Video Brain... I missed out on a new in box Video Brain console with most of the games and some accessories on Craig's List a couple years back. I think everything would have been $250 and I even confirmed the purchase with the seller, but he stopped returning e-mails a day or so later. Maybe someone made a better offer, but I wish he would have at least had the courtesy to let me know.