Same here. I have various comics like Nick Fury, Doctor Strange etc. They had him in Strange Tales. Also have early ones from #1 like Spiderman, X-Men, Fantastic Four etc. Unfortunately I marked them with my initials. Never figured on them becoming valuable (or to be made into movies). They're valuable to me as remembrances of childhood, not as money.
Even with the initials you may have retirement money there if you need it. That’s a load of value in the market.