Charging by repository count, rather than some saner metric more indicative of actual usage (like number of users) is a deal breaker.

Got tired of waiting for Github to stop excluding my team because of the repo count nonsense, went to Bitbucket, never looked back.

Would gladly have paid Github a reasonable amount of money, but according to their silly metric, my little team required a Platinum account.

$20 a month for our sized team at Bitbucket and we have unlimited everything. For $25 a month at Github, we'd already be out of repositories just versioning our dotfiles.