So, I was looking for hotel prices in the DC area, and was on Orbitz just now. I saw Crowne Plaza Hotel THE HAMILTON was 'from' $94/night. Great.. let's see what happens when I go to book it. I did nothing in those 5 seconds except saying 3 people for the room. We're talking at about a 5 second different, 10:45pm on a Sunday...

Due to changes in availability, the average nightly rate for the hotel room you selected has changed. The rate has changed from $94.05 to $329.00. (Message 1805)

Uh, quite a jump in price, no? Maybe it's just the message? If it said "Oh, sorry... 3 people means over 300% more than you just thought.. sorry", then maybe it wouldn't look like bullshit.