I was stung by the loss of free apps for domains, because I use Appengine and need several distinct email addresses per app. None of them need Drive or anything but email forwarding, so $50 per year per address means a considerable expense. Yahoo's $120 per ten addresses seems far more reasonable.
You can use Google Apps' "groups" feature to get forwarding. You can also set a catch-all address that gets email sent to any valid address at your domain.
