Wish I took some pictures of my Jeep Cherokee with my 14ft on top (same boat as in picture). A 15ft on a CRV would be even more redneck than mine on the Jeep I think. I made this myself, and could load and unload the boat by myself (not a light boat either).I did the same with my new truck, here is a picture of it on top. And a poor one of the front set up.
I will agree that hooking up to a trailer is much more convenient. It just seems that I am always pulling a trailer as well so it is not an option for me.