Were you actually going to go? The people that want to go to Vegas will go regardless of what day it is. I'm going this year and I sure as hell wouldn't NOT go because it's a stupid Hallmark day. If you're going to Vegas you are going knowing full well you are spending money.
For the record, I spent $425 CAD on a flight from Toronto to Denver, Denver to Vegas, and Vegas to Phoenix. You can get a hotel in Vegas on the strip on February 14th for less than $100 CAD a night. Did you do absolutely any research before posting this?