Also they have a deal right now where you get round trip on the narita express ( the train that goes to/from the airport and tokyo), where for something like 50EUR you'll get the round trip to/from the airport, 1500 Yen suica credit, and a suica card.

Normally the Suica itself is 500Yen, and if i remember correctly only comes with 500Yen credit.

In addition, the narita express normally costs more than this whole package on its own.

Haven't used NEX so can't help with that one.