Ditto what yonggoh said -- personal stock for me; L'eau d'Issey for the masses.
Still, it's not pure altruism that drives me to please others -- it's vanity. Why else endure the migraines that the delicious Versailles pour Homme gives me if not to gather the multitude of compliments I get whenever I don this discontinued, expensive juice? Why else ignore the cloud of clove that hangs around me upon squirting Halston Catalyst if not to bask in the "Gee, you smell greats!" that invariably come after I have spritzed it? Why else spend a small fortune for the rich, honeyed patchouli of Balenciaga pour Homme? As much as I love it personally, I love the compliments even more. Why else reek of horny Seventies gigolo with Monsieur Musk if not to, well, get laid every time I wear it? I love ALL these frags, yes, but I love the attention I get from them even more.
Personal pleasure? You bet -- still very key for me. That's why I splash on Je Reviens (femme, yes, but OH the love I have for this Worth gem!) after hours while I'm alone, or Green Water (most folks HATE it on me, but, hey, me likie), or Fou d'Absinthe (am GA-GA about this juice). I spent $135 plus shipping to get FdA, but it has yet to garner me even one compliment. Why would/will I buy it again? Because, as I said, I'm positively ga-ga for it.
In short, you may call me a philistine -- and perhaps I am. But I'm not ashamed to admit that I wear certain frags for others as well as for myself. We all do the same thing with clothing -- why should scent be any different? I may WANT to wear khaki shorts to meet a client, but I put on a tie and trousers instead. I may WANT to go to my Da's 65th birthday party in a "F-ck Bush" t-shirt, but choose instead to go with an ironed casual shirt that he'll not get upset about. Same with scents, you betcha -- same reason I wear Aramis around him instead of Musc Ravageur.