Just to update this thread, the advance bookings are gone permanently and it's 900 yen from NRT and 1000 yen to NRT. http://35fss.com/pdf/fun/itt_pdf/tra...a_to_tokyo.pdf

Is the consensus that the Heiwa Kotsu (Access Narita bus) is more comfortable? It looks like it is a fancier long-haul type bus. Also Ginza is better for me. http://accessnarita.jp/en/home/

I might try it when it gets cooler. Next week I am on a business trip and it's freaking hot outside.