While Grand Prix New York was won by Seth Manfield with his Orzhov Super Friends deck, there is plenty of other data to look at from that event. One thing that is becoming increasingly clear to me as we get deeper into this Standard format is that Eldrazi Displacer is quietly one of the best cards in Standard. The new four color Cryptolith Rite decks are taking advantage of a full four copies of the card for their infinite combo, and even just the interaction with Reflector Mage can be backbreaking.
If you count the copy in Manfield's sideboard, there were 9 Displacers in the Top 8 of GPNY, and frankly it's telling that the one copy of the card even appeared in the sideboard of Manfield's creatureless control deck. The Top 16 of the event adds eight more copies of Displacer to the total. If you reach into the Top 32, you'll find 16 more copies. That's 33 Displacers in the Top 32. The majority of the Top 32 decks boil down to Grixis decks, Selesnya Tokens, and Displacer decks.
Eldrazi Displacer has seen small gains recently, and is almost $4 now, though I don't expect the growth to stop there. I could easily see Displacer being an $8-10 card should it continue to post this many copies in the winning decks of premier events, and frankly it might already be there if the tournament winning deck were a Displacer deck. I like these well enough as a buy, and love them as a trade target right now.