I bought the Silver Age variant by Mike Cho. I didn't give any thought to its future value. Just went with the one I liked best (Moore was my runner-up). I finished reading the book a week ago but I still have it sitting on my coffee table because I like the cover so much. It really takes me back (although I was an early 80s-Bronze-era kid) to a time when I would pore over every image in a comic, savoring every panel of it. Today's art may be considered more sophisticated and complex but I don't know if it can compare to the clarity and effective storytelling of the earlier eras.