Here is a great phrase to help you when negotiating until you get the price you want.
" Drive a hard bargain "
A. $ 4000.
B. Too expensive.
A. $ 3500.
B. Still too expensive.
A. You drive a hard bargain. Okay, okay, $ 3000.
A. It's more than I wanted to pay, but you drive a hard bargain .
B. That's why I'm rich.