Well, according to Wikipedia (I missed this when it happened, probably something to do with lots of homework at the time :p) one of the big reasons InDesign took off so well is the new version of Quark that came out in 2002 wasn’t compatible with Apple’s OS X. BIG mistake. InDesign 2.0 came out the same week. There’s a new version - Quark 8 - out this year, so maybe it will make a comeback. We’ll see. It’ll surprise me if it does–for about 4 years there, it looked dead in the water to me.
Sorry! Like I said, I could be wrong about it. Also, InDesign’s structure is really very similar to Quark, but I’m assuming the latest versions have changed quite a bit from the original ones that had more direct metaphors to traditional layout methods. If it’s any consolation, us newbies know it wasn’t that long ago, there was just a gigantic shift in the industry in the early 90s. I just happened to land on this side of it. The technology changes so fast that everyone feels nostalgic. (Hell, I feel a little odd that I learned HTML before CSS was standard.) I took a few classes on pre-desktop publishing design, layout, and printing, and I kind of wish I’d had the chance to develop some of those skills. I think people who began studying it in the late 90s and after must have a different…relationship, I guess, with our work than people who were in the industry during the transition.