[Crazy Jetty]

I never cared for the "quick change" gimmicks. Bruce Wayne or Tony Stark would not go to some board meeting, or do an interview with a reporter while wearing some odd tech suit with circuitry patterns all over it. Then when you clipped the bat/iron armor on, it always made a piss poor batman.
They always felt like extremely weak substitutes for what I really wanted. Full on, normal Secret Identitiy figures, dressed as the character would normally be dressed.
Superman was always an extremely weak for toylines because you *never* got important characters like Perry White or Jimmy Olsen, and you were damned lucky if you even got a Lois Lane, or a goddamned Reporter Clark Kent.

So no, can't honestly say I personally miss the "quick change" figures, because they never even remotely filled the massive hole they were intended to.