Day & Age WOULD seem disappointing if you really, really liked
Sam's Town over
Hot Fuss. The thing is, so many people, yours truly included, loved
Hot Fuss and saw
Sam's Town as a slight disappointment, at least when compared to what came before it. That's not to say that
Sam's Town was bad, because it wasn't, obviously, but it was disappointing, sans a few tracks.
I'll just stop there, besides saying that I REALLY enjoyed
Day & Age, since the rest of what I would say here could work for my summary of the album.