It's of course possible that a short expanding time (1 hour for example) after the highest bid is the smarter wayyy
But, as said, just "possible", no one knows that for sure - so at the end it is redundant to think much about it - because at one time a long expanding time (1 week for example) can lead to a higher sale while at another time it's a short expanding time which does so - there are simply always manyyy unknown circumstances behind of what we seee