You know what they should do in my opinion, not that it matters.
I am ok with the branches if they offer good deals on good stuff.
What would keep it more in line with the heritage of woot is the the following were reserved for woot.com:
- New launches
- Crazy deals
- Odd products
This would keep the whiners content that deals are no longer good deals anymore, just average deals.... which I am ok with on the other sites.
You could use this as a selling feature as well. Woot.com could be your price leader to draw people in and then lure people in to buying stuff from your branch sites. In my opinion, this is how shirt.woot.com became successful.
If you just keep throwing whatever you want on woot.com, and they are not great deals, you are going to lose your uniqueness which is the death of a niche site such as yourselves.