What's your malfunction? How am I a shill? My job (developer) requires me to work in the MS world, which is not a bad thing. Personally I am a closet apple fan boy. I've had every iphone to date, except the 4s, (typing this on my 5). I've also had a few android phones. I already have two 1st Gen iPads in my household so if I really want one I can wrestle it away from my wife. My personal laptop is a Mac book air, and will buy the next Gen one whenever that comes out.
Productive for me on the RT means being able to alt tab between docs while replying to emails, and yes, spreadsheets. A lot of my productivity involves reviewing and editing code files. Before the RT, I did this on the iPad, just not as easily.
As for the next iPad, of course there will be another iPad, just like there will be a 2015 Ford Mustang, or a 4k Samsung tv. Won't be this month or maybe even this year. But there will be one. I simply recognized that I can get $400 for my iPad 3 now or much less later.
One can live in more than one world and be quite happy.