Decisions, Decisions

I spent this afternoon looking at the new BMW K1200GT and the R1200RT at a dealership in Columbus. I currently ride a cruiser, but I have been thinking about adding a sport tourer to the stable. Both of these BMW's are awesome, but do I need to spend the extra money on a BMW, when I would probably be fine with the Honda ST1300,Yamaha FJR1300, or the Kawasaki Concours 14? I am more confused than ever!