Yes - to clarify, if I was going to sell something, I'd plan it to end Sunday evening...for sure..that's when everyone is looking.
In terms of a steal, regardless of your definition, you generally won't find them Sunday evening...but if you look for the auctions that end at odd days, or are listed as BIN on odd days, that's where you'll find your best chance for a steal IMO.
That GB Anchor popped up again on a Saturday afternoon, around 2pm my time...same with the W&B 9/8 FBU, both would probably have doubled, if not tripled in price if they had of been scheduled for a Sunday evening end, in an auction, rather than a BIN - again, just my own experience around these things.