Smells are currently being sold -- as advertisement for products held within stores (big box stores are known to pipe in smells of baked goods at the front etc...)

What if consumers don't pay for music? There have been many suggestions about how this will play out, but maybe it will be that Pepsi and McDonalds will decide the music that is best suited for selling their products. Brittany Spears will stick around for sure (love her), but I'm not sure where this leaves us.

Sure, but we're talking about smells in the context described in the original PG essay and the response to it that this thread is attached to.