It still did well considering the circumstances of her mental breakdowns, no one wanting to work with her, no label wanting to sign her after Glitter, Glitter move & soundtrack flopping, 11-12+ years in the biz at that point, new acts and trends taking over the scene, etc. She did better than Glitter (not that it's saying much), plus she toured around the world which made way for TEOM.
If she skipped out on Charm, I don't think she would've been able to comeback the way she did in '05.
I mean:
1,166,000, "Charmbracelet" (2002) - as of 2013
In 2002 album sales were really good.
It was #1 on Hot 100 Single Sales, but sales for Singles were dead/bankrupt in 2002 and she went #1 off of selling 13,000 copies. 
Not really like an achievement type #1, which is also why it flopped still because Airplay was what the Hot 100 was basically and TTR flopped on Airplay. 
