I've wanted a cri-cri since they were first introduced...and one of these years...
A goofy looking little airplane, I've always been impressed that it can do what it does on such little engines and propellers. Sort of like watching an F-117...that it flies at all is somehow just a very neat thing.
If you do a little digging on the web, you'll find some video of one flying with small model airplane turbojet engines.
I couldn't care less about logging the time, but it looks like a lot of fun to fly.
It also looks like it might get very hot in the cockpit in the summer.