Well, since my "hardcore Marvel fan" days were the 60's, they'd pretty much have to make it a period piece for me to enjoy it. Still, I prefer my comics on the printed page.
As for why the obsession with comic characters, the real reason is that conglomerates. Ever since DC became a small corner of Time/Warner, they already have the property, and it's all about exploiting your property, so we get comics on the big screen. Along with sixties sitcoms, of course...