> On the desktop though they are a bit too stable.

>> You're obviously correct here.

It's neither obvious nor correct, the "stability vs. features" expected is completely subjective. I run Debian Stable on my desktop because I've almost never encountered needing newer versions of anything, and when I did I could usually jump to testing (i.e. the upcoming release) rather than unstable, and even then the next release usually wasn't that far away, so it was still very stable.

As other commenters have pointed out, you can run Debian Sid (unstable), but I'll also agree that if that is what you want long-term then maybe running something like Arch makes more sense anyway.