I really didn't start buying MAC shadow pots/pans until... I dunno, March 2008? April? One or the other. I've been playing with pigments for a couple years though. ( I'm cheap, and not hung up on brands or brand loyalty, as long as something works for me. Very loyal to lipglasses, though, for about 10 years now.)
So I have 8 shadows, 1 MES, 5 paint pots, and 14 pigments.