I completely agree with you on that, in fact I came in the forums looking for exactly something like this, because I had the same idea today.
For me, a 2x12 stereo combo would be perfect, even more so if it was wedge shaped and I could place it in front of me, like I would a floor monitor.
I just got a DT25 and am evaluating it. My long term intent is to have two of them, in stereo. If one dies I am not dead in the water. While they work I will be happy. I also got the extended 1x12 cabinet but it needs work on it to sound as good as the DT25 combo sounds like. The front port doesn't sound good.
By putting all your eggs in one basket and a gig comes up and it doesn't work... Boy I just dont know...