what the most expensive weed EVER?

[3 Sheets To The Wind]

I got "G-13" (or so i was told) for £10 an 8th, i must admit, it was probably the best weed i've had, although it was in my early toking days, and i do get GREAT weed now aswell (£20 for an 8th, turning out to be a Q of sticky strong smelling, lovely tasting weed)