Well, none of the last three computers I've built has included a floppy drive. The connector doesn't get in the way (and I can and do disable it in the BIOS), but I gotta figure that the floppy controller (and serial controller, and parallel controller, and PS/2 keyboard/mouse controllers) on the north bridge aren't free. If nothing else, they're taking up valuable space on the silicon that could be used for something else, like USB 2.0, 1394, IDE RAID, and when the hell is Serial-ATA finally coming? It's almost criminal that we have to have these big honkin' ribbon cables running through our systems when bus technology for external peripherals has advanced so far.
I'm no great fan of Apple and I'm even less of a fan of Steve Jobs, but you can make a very good case that by not including a floppy drive on the iMac and by dumping ADB entirely for USB, they gave USB a much-needed kick in the pants and got manufacturers finally cranking out USB peripherals by the truckload. The sooner mobo manufacturers dump the outdated standards and start forcing peripheral makers to modernize, the sooner that modernization will come.
</rant>
(Please followup via PM, since this is now off-topic. Thanks).