Depends on whether or not you have a redemption in mind and could get more value or use from the points.
I actually value them at .4 cents each, but can frequently get more value out of the points depending on where I book.
Redemption value or selling?
I was talking about redemption value. Based on the few times that I've done Hilton, the cost in points has always been exactly that value. They show the room rate in dollars and points in the same place, and it always was 0.5. I thought it was more than just a coincidence, but I'm willing to learn where the better redemptions are.