Very strong prices, but they are pretty incredible items too, IMO.
I can't think of a more memorable home run in my lifetime (age 38).
Sure Fisk's HR in Game 6 over the Reds was certainly way up there, but the Sox didn't go on to win that series, so the Gibson HR outranks that one in my book.
Given Gibson's injury and the "he'll either hit a HR or a get an out" at bat against the strongest closer of the day, made it a defining moment of baseball lore. All in all, those are some phenominal pieces of memorabilia...