After a solid two minutes' meditation on the subject, my considered take on Valentines Day is that...at least we have one holiday that emphasizes love for your partner (and by extension family and friends) in a non-Judeo-Christian fashion.
Complain all you want about corporatism, but here's a day in the year when the idea of considering the needs of those you care for is completely unfettered from the usual God-and-punishment tripe.
I think paying for some uprooted plant genitalia and a few cocoa-sugar confections is worth society at large being free of the hypocritical, fire-and-damnation love we hear so much about on any given Sunday.
Not that I opened my wallet in any related way today. Jes' saying....