Author Catherynne M. Valente (catvalente) defends Valentine's Day:
As for the commercialism of it--well. It is commercial. So is every holiday, yet somehow we don't stomp all over Easter the way we tar and feather Valentine's Day. Valentine's Day is no more a fake holiday than any other. If I hear someone call it a Hallmark holiday I'm actually going to scream. I'm only going to say this once. Valentine's Day, boys and girls, entered the Western mind in Chaucer's Parlement of Foules, fully-realized as a day to celebrate love via an obscure saint, with red hearts and everything. Yes, celebrated in an allegorical bird-nation, but guess what? That makes it even more awesome. I will take a holiday my buddy Geoff invented over almost any other. If I had my way, we'd start exchanging bird-themed gifts and ditch Cupid.The rest of it's worth reading, too.
This is a great holiday. It's pure physical, sensual pleasure, divorced from any dogma at this point. Saint whatever. Pass the sex and food.