that's pretty cool, but it doesn't seem to get significantly larger so it doesn't have much practical value in my mind

I totally disagree. In small mode, it would seat 4-5 comfortably, in large mode, easily 8-10. Doubling the seating is significant to me.
Also, coolest table in the neighborhood is worth a few bonus points....but for that you should motorize it. Those are the best.

I'd say it goes from 4 to 6 comfortably. It may be possible to alter the design. If you did, I think it would probably scale at the same rate... 5-7.5, 6-9, 7-10.5. Doubling would provide useful, but it doesn't seem that way to me.

Still pretty awesome table. Another cool part of the design is the ease which it transfers to the bigger mode. No more storing leaves in the basement or having to have two people to pull it open.

Moving this video to ant's personal queue. It failed to receive enough votes to get sifted up to the front page within 2 days.