You should do a search on ebay for sold Elvis memorabilia: magazines, records, miniatures, plates, bookends. Its all still there. For $500,000, photos of the actual toilet Elvis dies on can be yours. (Apparently, this is hard-to-find, as the bathroom was locked down right after he died, and then Precilla renovated the bathroom).
You "sky is falling" guys crack me up. A comic-con at a local DC Metro area college just last month had a line around the block of people waiting to get in. This for a small con of primarily just comics -- not a San Diego or Baltimore-type event. This hobby ain't going anywhere.