No responses in a week. Trust me, -bin[1] covers everything that -sun[2]
does. In addition it's the original one and it has more votes.
We don't need both.
[1] virtualbox-bin = https://aur.archlinux.org/packages.php?ID=51727
[2] virtualbox-sun = https://aur.archlinux.org/packages.php?ID=31996
Det