Have you considered a Porta-Bote?
They're a little more expensive, but can be found used on Craigslist for around $700. http://boat.jaxed.com/cgi-bin/boat.c...itm=porta+bote
They come in 8.5-14 ft models, can be towed easily or pulled aboard, folded and stowed on the side deck. The 12 footer weighs 77 lbs.
I considered one when looking at dinghies, but went with the inflatable. Sometimes I wish I had gone with the porta-bote. They have been around for many years and seem to be nearly indestructible. Also, no worries about harming that perfect paint job since they're made of plastic.
I rode in one once and the floor flexes. At first it feels strange, but you get used to it quickly. The flexing absorbs the bumps and provides a very smooth ride in choppy waters. The ride is very dry and the boat is very stable laterally.