Been a member for 10 days and have 12 in my down-line, and I don't use the 'invite' system. The 'canned' wording in the email, by its very nature is impersonal. And if these emails are to be sent only to friends/relatives and people you've already spoken to, why in the h*ll would you send a robotic impersonal email to them.
I understand GDI's logic. The invites would be for people who aren't comfortable writing a coherent sentence or two. Or who might write way too much info and turn off a prospect. But for those who can connect a few short sentences together without spilling the beans, it makes more sense to use a regular email program. You can Bcc the invites...at least the bulk emailing can be personalized AND is coming from an email address that has a much better chance of getting through. Of course we won't know who actually opens the email and views the video, but that's all the more reason to send a polite follow-up: "So, Bubba, what did you think of that video? Pretty awesome, huh? Got questions? E me back and let me know what you think."
Anyway, just my unasked for opinion.
Barry