Additionally, creating and maintaining a PPA involves one of the following:
(a) Use the upload form for Launchpad.net [0]
(b) Host your own deb server [1]
Unless you use Bazaar for a VCS, the only time you login to Launchpad is to upload a new release. With Homebrew it's built into git with adding a new tag. A _LOT_ lower barrier to entry here.