don't know if you've all seen this in the daily mail http://www.dailymail.co.uk/sciencetech/article-1198123/Is-expensive-video-game-world.html
but (I know this is a bit of an exception as a v special issue) older games are beginning to be quite sought after.
Which of the vintage games would you pay over the top for ?  what recent games do you think might become collectible in years to come ? and are you keeping any to the side just in case ?  

Last year, I went on a binge on eBay for vintage PC games and came up with boxed copies of the following, all in excellent nick:

Planescape: Torment, System Shock 2, Syndicate, Syndicate Wars, Blade Runner, X-Com: Terror From the Deep.

I paid about £40 for Planescape alone, and I would've paid a little more, so I guess there's still value in older titles provided you find the right people who are interested.

I have a complete boxed copy of System Shock 2. Big ass cardboard box takes up so much space. >:(