Nyjer Morgan was insane for 49 games in 2009! Then after that he was, well, just insane.
This all comes to a head pretty quickly though. If he wins the AL MVP, there is only one season until Bryce hits free agency. Judge's performance may not be a complete deal breaker to signing Harper, but it's got to be a factor. Judge will be going into his 4th year by then, which is about the time you start thinking about long term deals.