It's pretty normal for a big name games' board to be super popular well before it comes out. It's because people are so excited for it. They like to discuss every new piece of news that comes out about it. After said game gets released though, the board will usually start dying off after around the 2 year mark.
"They look so *** damn like the same person, I say to them "you want ice cream cones?" both of them say yes!" - Mario Twins