The reason I moved from openSUSE to Arch was that openSUSE aims at stability and reliability, which means packages take some time to land in official repositories or in the Open Build Service (OBS). On the contrary, thanks to AUR (Arch User Repository) and testing repositories, you can easily install packages even before they are officially released. And since it was a rolling release, I was always running the updated packages without having to reinstall everything every year.