a question

Tae won   Tuesday, May 24, 2005, 13:34 GMT
--> Woman : Obviously you know how to haggle, so I'm not gonna try and take you on. Okay? So $800 and I don't call the cops because you're robbing me blind! Blind!

What does 'take you on' mean in this dialogue?

Your help would be appreciated.
Mark   Tuesday, May 24, 2005, 13:38 GMT
It means: I'm not gonna challenge you.
Tae won   Tuesday, May 24, 2005, 13:41 GMT
I see. Thank you a lot, Mark :)