Sounds like these people are in a time warp. They obviously are not high-performance hardware users or they would be familiar with keyboards that use Cherry switches.
Who says we aren't? I am. But I've never used a keyboard that feels and types as well as a Model M. For me at least, I'm able to type significantly faster on one than I am on any other keyboard I've ever tried. I've got 2 of them, they cost me about $8 each, including one of these Airline Reservation Versions.
As a Unix/Linux admin, typing is my bread and butter, so I'm going to continue using the best tool for the job. For me, that's a Model M keyboard. I don't care how much it pissess off the Windows admins in my office, with their cheap-ass Dell keyboards.
Which reminds me, one of the things I don't see anyone mentioning about those cheap keyboards these days is that there is NO plastic around the keys by which to grab the keyboard to pick it up. Any time I am stuck using one and I have to pick up the keyboard, I end up mashing a bunch of keys and screwing up whatever is on the screen because there's only a tiny area above the INS/Home/Pgup keys to grab it by. Crappy typing notwithstanding, even just that issue drives me up the wall!