Poll: Vitamin or Pain Killer?

The common wisdom (of VCs) says, sell a pain killer not vitamin! In PG's words, "make something people want" - but isn't people's need limited by their experiences (the famous Ford saying). I don't necessarily believe human life is so pained that all one wants is a pain-killer. Facebook, Twitter aren't! So what are you wkin on? PK or V (or either/neither?).