Hello lovelies, it's me, Vintage-PIAM. Going undercover 
IIRC Opium is the one most likened to Cinnabar, rather than Obsession, although all of the same era, and yes, absolutely 100% down to marketing. Opium was considered naughty and risque from the advertising down to the name itself, and caused shockwaves. Obsession followed on from that with the first advert being cloaked in mystery (were there 2 or 3 bodies in the bed? I still have the original advert somewhere that I had taped to my wall) Reformulated Obsession is a shadow of its former skanky self.
Well, today I am in Paris 1948. Meh. Seriously underwhelmed. It's like a watered down version of (new formulation) Y or Apres L'Ondee. Sweet violet.
Yesterday and the day before was PP Rive Gauche (I got the biggest bottle they do, as I know their version is absolutely fabulous and even better than the (reformulated) real thing.
I wore the Lion Cupboard earlier on Sunday. It is utterly utterly foul for 20 minutes. Listerine and Venos cough mixture. Then it settles into a Taueresque beauty. Less gobsmackingly amazing than the Tauers but the spice-resin-balsam thing is going on. You just have to remember not to go out in public for the first 20 minutes of hideousness. 
You've now got me almost convinced I need to schlep up to the Perfume Shop on the local high street to get a bottle of Lemon as I even like the fairy liquid idea. But remember I loathed your darling Fire with a passion!