We've all been there. Wanting for that new console or new game. Thinking seriously about selling some of our collection to stores like Gamestop just to get something new. I can't tell you offhand how many games or consoles I've sold over the years just to gain access to the latest releases, but I promise you it's more than I care to admit out of shame.
Every time I've done it I have always regretted it in hindsight. To be to the point, and completely honest, I don't think there's one single plausible reason as to why you should part ways with any of your collections. Time has shown gaming products hold value, and that that value often times increases when the next line of consoles and games come and go.