Do you keep games in a collection ie. A LOT OF THEM, or trade/aquire/trade

[Xero]

I buy a lot of games. With intent to collect, however I often spend several hundred on games at once, then find something later down the road that I can't afford. So I'm forced to trade in, in order to buy Killzone 3 and MVC3 for example. I traded in Majin and the Forsaken Kingdom, Need for Speed Hot Pursuit, and Call of Duty BlackOps to get both of those games. 

I collect games I like. Sell games I do not. If I like a game but have no intent to replay it, or it has no replayability, really. I'll usually collect it regardless, so where I can be I'm a collector. I have 90 games on PSN, and about 50 bluerays.