I would highly recommend reading through the whitepaper (if you haven't already done so) here: https://steem.io/SteemWhitePaper.pdf

Personally I would like to see these nuggets in your video:

1. As mentioned by others, the big one is that Steemit pays for content/comments/votes with Steem Dollars and Steem Power. People, like yourself, have and continue to make thousands of dollars for a single post.

2. Steem Dollars are pegged to the USD and are one of, if not the most, price-stable crypto currencies available. Holding SD earns you about 10% interest. So it's like a liquid CD/GIC that pays 10%. This is huge.

3. Steem Power compounds in realtime and 90% of all new STEEM is distributed to SP accounts. At the current level of STEEM distribution SP accounts will more than double in 12 months. SP can be withdrawn at a maximum rate of 1% per week.

4. All of your accounts are contained in your profile. You can see all of your balances any time you log in. Transferring SD takes seconds and only requires the username of the receiving party. No government can seize your account, block your transfers or take your money away. If your account gets hacked you can recover it.

5. Dan and Ned are awesome and should be nominated for a Nobel Peace Prize. Seriously.