If you go to Ari Ben, check exactly what the deal is. I was training at the school next door in June (which leased all their planes from Ari Ben). I think they pair up JAA and FAA hour builders in the Duchesses - there is some provision which allows both pilots to log the time.
Also, they don't really make it feasible to take the aircraft very far from base as they pay a very low amount back to you if you need to refuel.
Having said that, they do have a big fleet of Duchesses.