I think the final nail to remove onsite registration was I thought someone brought in a ton of new old stock items from a warehouse that they registered on site and it just threw everything off massively as to where they were needing to do auctions like 'High bid takes as many items from the table that you want' and then bid again on the pile.
As for late registration, I made sure to get my auction items in, but I've been slow on the store stuff since I know I have time and was more focused on auction stuff at this time. I assume I'm probably not unique in that regards so, I'd still expect a decent amount of store registered stuff in the last week still.
Edit: Nope.. guess I was wrong. That dump was in 2011. (I remembered a few of the titles that they had large #'s of and looked it up and found that it was then). Time flies...