I've had two AES consoles and a large stack of games over the years, gradually it went from games in boxes with manuals to just keeping loose carts I found in that time. I eventually let it all go. Why? I sat and played it all, I realized the magic was gone. That feeling you get of something fresh and new, it always fades. What remains is whether you truly enjoy the games, because beyond that, it's all just plastic shapes.
It may not be everyone's approach, but I've come to realize what that feeling of "this ship has sailed" is really like. You'll know it if you don't willfully ignore it. Take an objective look at your stuff. Do you love the games enough to keep delicate, fragile, aging hardware around? Is your passion still there? Or are you just holding onto faint memories of better times?
I've hung onto my MVS carts and one CMVS system for myself with a couple AES sticks. Sometimes I wonder if I should let those all go too.