I feel you pain. For years I to held on to my comics and all comic related items I had bought over the years. They were my treasure of my past and I enjoyed looking over them from time to time and even sharing them with some of my friends, that give them a love for comics as well.
The thing is life moves on and as they number of comics and boxes kept getting larger, the room I had didn’t not. Top on that, that we moved to a smaller place and I could pack them a way, but during that time, other family members need some of that space of things they need to pack there for a time and my comics and stuff would be hard to reach with other things blocking them. Months and months would go by, without my being able to check up on them and when the other things were moved out of the way, I discover many of my Marvel books had gotten rain on and were not nothing more the color paste. Seems the roof had a hole in it and it rain down on where these book in their boxes were. So, they are gone.
Again, we move and we move into an even smaller place and now I have to storage them over a friends place and pay him rent for storage. That works out well for a few years, till he wants to use it for storage of his older things and I once more have to move them to a rent a storage place. That turn out not to a good idea. After two years of paying for the space, I lost my job for summer work, and after just falling behind for just two month, before once more having a job again, they closed down my room and let me know they were going to sale everything in it. I did what I could to let them know I could start paid them back, but they would have nothing to do with that. Now let’s jump just about a year later and they are still trying to sale my stuff, but I have learn by all this time, I can live without them, so my friend, I would stay to you, just let them go and share them with the world. Sale what you can and others give to local libraries, or other comic shops. Keep a few that mean the most to you and let all the others go.