Also, check if a govt rate applies, we get a state employee discount.
Many times there are special rates for employees of nearby employers, so, if a company has large facilities in an area you're visiting, ask about their rate. they never require you to show proof..
Personally, I would NEVER use Priceline. we tried them once, and booked a hotel in Honolulu. what a dump---even the website was depressing, that's when they would be putting their best foot forward! We decided to eat the $300 charge, and book a better hotel. But, PL never billed us! Out of curiosity, I called the hotel, there was no reservation in our name! Can you imagine, going all that way to find you're booked in a dump, then arguing your way in when they have no record?
Best deal I ever got----6 night FREE at the Hilton Hawaiian Village on Waikiki! Now FREE is a pretty good deal, but....because we were Hilton Platinum members, they upgraded us to a Rainbow Tower Suite---corner suite, ocean view.free eats in the VIP lounge......hey, those were the days!