On their expansion site, http://stormlegion.riftgame.com/en/ , a deal is being offered.
If you buy a 1 year Rift subscription you get the expac free.
just thought I'd let people know about it. I did not see any threads about it and I first found it when I tried to visit the main site to get to the forums this afternoon as a pop up thing before actualy getting to the main rift page. yeah, I don't bother bookmarking the forum page.