Bummer Carol36! Sorry you didn't get it!
I am probably not the person to ask though about a higher price, this was the first time for me to use Priceline and I was lucky and got the days and price I wanted.
kcashner made the suggestion below - and I think it is a good one!
A suggestion--make a cancellable (is that a word?) reservation somewhere. Then bid Priceline. You know that you want to keep your bid below what the reserved room will cost. Farther out, stick to your guns and don't bid too high. You can always go higher as your date approaches if need be.
That is what I did. I had a reservation at the Radisson for $115, but when I got my Priceline confirmation, I cancelled my Radisson reservation.
Good Luck!