My Flying Scot is not what most people would consider a dinghy, but it's certainly one of the smallest and least complicated boats represented here on Sailnet ... and that's exactly why I chose it. I learned on Rhodes 19's, so the size and performance feel very comfortable to me.
It's big enough that I won't capsize it by moving around, and the cockpit is huge, so the typical dinghy complaints of banged shins and heads are kept to a minimum. I can rig and splash it off the trailer in 15 minutes and do what I want to do ... get out on the water by myself or with two or three friends with minimum fuss. I'm also shopping for a cheap used Laser to knock around on.
It would be nice to have a boat I could occasionally sleep aboard, I guess, but that usually implies a head, electronics, through-hulls, motors, dockage, and the myriad other complexities that most readers here put up with as a matter of course. It's just no for me.