I would disagree somewhat on the bubble for 2018 Update. That set has Acuna and Soto rookies, who are currently two of the top 6 or 8 players in the game and are 23 and 22 years old, respectively. Unless something happens to both of them, that set will continue to rise in value if they both continue to be crazy hot players. It's value has far surpassed that of the 2011 Update set after two years, if that makes sense. Said another way, I picked up a set of 2011 Update in early 2015 for $30. Pretty happy with that purchase right now.
Always looking for baseball variation/error cards and anything Garrett Whitley or Ian Anderson