...I dare you to go ask her how much she really spends on her hair a year.
We'll wait.
Even if she doesn't go to a salon, ever, and never cuts or colors it, very few women spend less than $8.33 on hair products a month.
Even if she has a boy-short pixie cut, someone has to cut it regularly and I guarantee you it's at least $30 a pop.
Cougarboard will be here to console you from the shock (especially buhlcougar.)