Abysmal drop, considering Easter weekend typically cushions the fall a little bit. Hell, Justin Bieber's My World 2.0 actually INCREASED during Easter weekend after being released the previous week.
I remember it It debut with around 198k or something and the next week sold like 204k approx.
I was under the impression that the tickets were the same price either way, though.
Madonna fans are taking into account that those who bought tour tickets didn't do so to get the album. The album was just something that came with them.