I resell for a living and I specialize in video games. I know some people that consider that distastfull, especialy some of the hardcore collectors. But the way I see it, is that I too am a collector, except that I am willing to let go of my collection faster than most . If I didn't buy and sell, I would not have half the knowlege of video games that I do now and that would be sad .
As far as losing your collection, I trully am sorry. But as long as you're not 6 feet under then you have everthing, even the possiblility of having a better collection.