Maybe you could make the case for some cutting edge development or test box, but then again, I'd rather be testing on something that's as close to identical to the production environment as possible.

I used Arch on my laptop (primarily used for development) for several years. It mostly worked great and I always had access to the newest whatever with a minimum of hassle. I don't have many complaints, but occasionally after an update something critical would stop working.

I'm on Solus now and, so far, it's been pretty great. :-)