This question already has an answer here:
I say that because I'm using Ubuntu and Arch Linux.
I like Arch because the last updates... last ruby, python, php, apache (I'm a web developer), java, etc.
For me, this is very important.
But everytime I want that in Ubuntu, I need found many ppas and add them, and update, and, and...
For me, this "operation" is exhausting and boring, and in bad situation, can generate a lot errors in my Ubuntu.
So... have a option, or a master (debian/arch) repository with the last updates of "everthying"?
Or something like yum/pacman: download source and compile for Ubuntu.
And of course, I say that because I love the usability of Ubuntu and Unity... so I want stay here.