I just discovered MAC in August. I've always been a collection cruiser - if some new collection is out in a brand, I like to get something from the collection. Up until recently, though, it hasn't been too serious, maybe a couple hundred dollars per year.
Since I bought a mineralize eyeshadow, and learned that these were limited items, I found myself getting a little anxious about all the upcoming collections. So far I've been somewhat lucky, only wanting one patternmaker palette, one palette and one lipglass from Wild, and one eyeshadow from Technacolour, but I can see getting dragged into the hype - and I can't afford that!
I've been writing lists, based on descriptions, of things I want, and then crossing everything off that I want less than the other things on the list, narrowing it to one item per collection. I'm hoping that works, because I haven't been able to control myself with the regular collection: I already have 5 of the ten most popular neutral e/s on Specktra. Do I really need 5 different shades of creme and brown? Not counting the ones in my palettes. (eek)
So, I'm hoping the "one thing per release" thing will hold. It's sick how seductive this stuff is. And it really does make me feel pretty.