We have done both.
When we buy resale, I become very familiar with the closing prices on the Orange County Comptroller. This allows us to see what people are actually paying. For example, if we want to buy AKL I start watching those closing prices. Then when I see a contract in my UY that's a "deal" in my opinion (in this case $95pp), we offer full price. We did the same with our BRV price in the low $80's. Neither of these were stripped contracts -they still had current UY points in place along with some banked from the previous UY. And neither contract was over 200 points. So, the price wasn't affected by the # of points.
We have also offered lower prices, too. Again, I become familiar with the comptroller closing prices. Then, when I see a resort with multiple listings in my UY, and it has been on the market for longer than usual, we will offer a lower price, according to what I'm seeing those comptroller closing sales. Only one time have I been shut down. All others have been negotiated to the price I am willing to pay.
Right now, I am watching another resale. I know the resort I want, and have an idea of what I want to pay. If I see the"target" resort at the price, I will pay full price.