People stating that 7 albums is too much, when Britney & Xtina both signed 5 albums.
In all honesty, she will be fine in the end. She said on her MySpace all she really wants was a few songs on the radio and to perform at festivals that her favorite acts have performed at, and to work with Iggy, Alice & Bowie. She's done all but one of the things on her checklist. She's happy.
Because Tik Tok became so big, she gave it a chance, but NO ONE takes a two year break and skips out on releasing a third single while you are 'big' if they want success. It just doesn't happen.