Singles have their place, but I don't get how people can go out and spend tons of money on an airplane and still end up with a single (sorry, Andrew).
Well, there aren't a whole heckuva lot of options in NEW twins these days. Starting at the low end: Tecnam P2000, Diamond DA42, Piper Seneca, Beech Baron...
<crickets>
... King Air, Citation Mustang...
With the exception of the incredibly short-lived Adam A500, there hasn't been a cabin class twin produced in a long time. Getting what Andrew got in terms of interior size and comfort means a King Air or similar - And that's a helluva lot more expensive to purchase and operate than a Matrix!
The only other option is to buy an old airplane, get new P&I, completely re-do the panel, etc. etc. etc. and then you still have an old airplane that's not worth half of what you put into it.
Clearly there is a market for a cabin-class twin - There wouldn't be so many Twin Cessnas, Navajos, etc. still out there flying if there wasn't. Maybe someone will come out with one again. Or, maybe by the time it's certified, it'd cost so much that the King Air would look like a better deal and the days of the cabin-class piston twin are over.
Diamond might find out - They have their light twin in the DA40, and they have a pressurized single in the pipeline... They also let slip upon the introduction of the new Austro engine that there is another twin in the works, but it doesn't even have a name yet. Hmmmmm...