Complicated issue, but. . .
I think Ed's reply is right on. How are you Andy? I feel like a soulmate, we were sailing with our Schnauzer(mini) but she was 15 and is gone now. But now we have the same issue with Ginger, a one year old Wire. Our old Avon has the plywood floor and is very stable but too heavy. I think an all inflatable gives you many more options because of it's lightness. I particularly like the idea of rolling it up for storage. We usually tow but I have also had it on deck and do not like the clutter and lack of visibility. Most of the time it sits in the long grass at the marina. I will add davits someday but I don't like them. And from reading about the safety aspects of an inflatable versus a hard dink there is no doubt in my mind that I would stay with an inflatable.