Proposal: Migrate unmaintained packages to github

We've got a number of unmaintained packages:
http://pear.php.net/qa/packages_orphan.php

We regularly get requests from folks to take over packages; but it's a bit
of a hassle to greet them; assess them; get them karma; etc.
A lot of us are comfortable with git. The migration path is trivial
(git-svn; update package source link; remove from pear svn); with the
exception of losing the CI service without a bit of mucking around.
Git removes much friction from accepting patches/etc; once you get over the
initial learning curve.

So... what would be compelling reasons *not* to migrate packages?

All I've got so far:
1) Validate_* have a unique dir structure which would be a pain to untangle.
2) There's a lot of packages; most of them without open bugs; so why muck
around with them

Anyone else?