I've never understood this "can't be doing with one door to get in and out" argument.
It's a bit like saying that I fancy a sports car but won't have a Caterham as you have to take the wheel off to get in and then put harnesses on...
So what? It takes 3 - 5 mins and then you are wearing a pure performance thoroughbred. I can't understand why anyone would chose a flying machine based upon criteria about getting in and out of it on the ground. Seems such a minimal part of the whole flying and ownership experience.
But what do I know - I fly a Pitts...