It's going the opposite way, but over the past few months i've been seriously clearing out my collection of floatsam and things that just don't appeal to me. Having not been able to afford many games when a child, through to shedding my collection every few years as a teenager/young adult, I finally settled upon collecting and sticking a number of years ago. I'm very much a bargain hunter/trader (though through game shops, not swaps), as well. As a result I've collected almost entire series of things which look interesting and bought anything non-sports when I could get it for pence.
As a result, even with constantly trading away stuff I wasn't interested in, my collection has swollen to include games I (now) can't even be bothered to try. Just being an action game isn't enough any more. With old computer games, most of them have aged very poorly and have no memories since I couldn't afford many when they were current. Series like Tomb Raider, Yakuza, Yu-Gi-Oh, Shenmue etc. might be fantastic games of their ilk, but they're not the kind of games I actually want to play. Original Xbox/PS2/Gamecube games which are dated, bog-standard examples of genres I'm very ambivalent about (FPS, street racing, 1-on-1 fighting, rhythm, cheaply put together licensed games or ones based on characters I'm uninterested in), had loads of them. They're going or gone, traded away. In their place are new games or store credit (more than £500 spread around three different shops/chains).
Moving forward I'll be:
*Concentrating on games that really appeal to me or have memories attached to them.
*Worrying less about games which can be emulated on a modern pocket calculator.
*Really concentrating on getting everything listed here on VGCollect - still have a load of strategy guides and some Amiga and 3DO games not on yet.
*Looking for cheeky bargains to trade in for stuff I'd like.
So it's a new dawn, it's been cathartic actually being able to turn around and say "what the hell are you doing on my shelf?" after all these years without it being about getting rid of the collection.
