Well, HA. I can certainly see where you are coming from. I have a three year subscription to both Dragon and Dungeon magazines. I read through them when I get them, and end up putting them in a box. I would like to get a scanner to copy the pages I want, then I would probably ebay the mags.
I don't have even as close to as much material as you, but I do feel similar in a way. I have played a few kick around games, and have played online, but nothing serious since I got out of the Air Force in '97. I had about given up on D&D just as 3rd edition was announced. That resparked my interest. I was jazzed again. Now, three years later, I still haven't found a real group and I have a "bunch" of RPG stuff I will never use. The 1e they can have when they pry it from my cold, dead hands!
If for nothing else, just for nostalgia sake.
I was never really as attached to 2e as 1e. But still some of that time period stuff I could never get rid of cause I like too much. I don't have all the Al-Qadim products, but I really love it and am trying to finish my collection. I like some of the Mysatra stuff too. Other than that, I have all kinds of stuff I will never use. I am going to eventually put them up on ebay and hopefully someone out there will find them usefull.
Third edition: I still have more stuff than I will ever use. Some of that stuff I will put up for sale on ebay too.
So, I can sympathize with you. Good luck and I hope all works out for you.