Well i guess that this is generally a good idea but:
1)It will have no big difference than youtube and
2) It may be a little more difficult for the mods to check what kind of videos enter to that AGtube. Someone may put explicit material for fun and even if it stays there for only a moment, some people will see it so... I think it is a little impractical.
Still AG tube would be a big database of made by US!!!
if your saying this "AG tube" would expand you are sadly mistaken. but integrating it with the new site is not a bad idea. make this thread in the AG3 forum and the Admins might answer or even agree
I will quote Cormyn because this idea has been discussed over and over again:
"We've already discussed having an area where people can showcase their SWF files, art, music, etc., on AG3 at some point. I doubt we're going to bother with a [youtube] tag in the forums, but *may* do something like that ONLY when writing a game review/spoiler."