I have to disagree with you with where you put the Era of Decline. See, the thing is that the rate that games were coming out didn't dry up. From 1998 to 2006, we had a release in 1998, 2000, 2001, 2002, 2004 (MC), 2004 (FSA), and 2006. That's a game once every one or two years, with a major console release every two to four years. From 2007 to 2011, we got releases in 2007, 2009, and 2011, or, one game precisely every two years. Phantom Hourglass may not be the best Zelda game, nor may Spirit Tracks, but from what I know (haven't played them yet), they look entertaining enough. Now Skyward Sword has one of the best OSTs in not just Zelda, but gaming in general, an original story that deeply impacts the Zelda narrative as a whole, and a well designed, artistically beautiful world. Zelda had it's 25th anniversary in 2011, and they through a great celebration. Symphony of the Goddesses, Ocarina of Time 3D, Skyward Sword, Hyrule Historia, and lots of other cool stuff. I would say that after the 25th anniversary, that the Era of Decline really begins.