My MAC phase lasted from around 2005 - 2007, and I've still got some of the colours I collected during that time. Many of them are discontinued now, but I still like to revisit them from time to time, particularly the eyeshadows in the three 15-palettes I amassed on a crazy shopping trip to New York in 2006.
Here's a look using some of my oldest and best-loved MAC eyehadows - Bitter, Blu-Noir, Tilt and Vex. Of the four, only Tilt and Vex are still on counters, and it's no wonder, as the pink-green duochrome on a champagne base and the blue/green/purple shift are both timeless classics.
Did you have a MAC phase? What were/are your big loves from the brand?