If I had the deep pockets required for a certified a/c and that a/c was a DR400, I wouldn't change it. They are the most friendly and silkily smooth GA a/c I've ever flown.
Ours has never needed deep pockets. In fact in comparison with some of the Permit fleet it is quite inexpensive to operate. Fortunately we didn't have to fund the Spar AD, but then some of the Permit fleet have issues equally expensive
My view is that you find the aeroplane you want and which fits your mission profile whether it is CofA or Permit and work out a sustainable plan to fund it.
We've been running for some time now and we plan to stay with our DR400 as long as our medicals allow.