I had a ton of Star Wars toys as a kid. I wish I still had them today. If I still had on my Star Wars figures and my Transformers I think I could probably sell them for a small house.
Of course, I still have all of my baseball cards that I carefully collected and kept in pristine condition. They aren't worth squat.
It just goes to show....... the things they tell you were going to be available aren't, and then things that you don't think are going to be valuable are.
Having said that, I have always wanted to attend a Comic-Con and I have never gotten around to doing it. The next time one comes around I'm going to try to get some friends together and go check it out.
It really is a ton of fun. I hope you can catch one.