What Peter said above

. Depending on which stuff you like the best, and/or you can't replace easily, those are the things I would get rid of last. If all are are somewhat equal, in sentimental value, then sell the higher dollar ones first. That way you won't have to get rid of as many to get back some of your money you put into them and you can accomplish the same goal. There is a chance you will want to get back into collecting sometime in the future and at least you will still have the difficult to replace stuff. ALL just my 1 cent....good luck with the decision.