To find discontinued MAC makeup products, you can visit the MAC Cosmetics website in the goodbye section. Another good place to find Discontinued Mac products is at the Cosmetic Company Store (often referred to CCO or CCS). If you have any outlets around you, there might be a chance there's a CCO there. They sell mainly Este Lauder Company products. So it's not only MAC makeup, but they also have Bobbi Brown, Prescriptives, Clinique and more. The price mark down is about 30% and the good thing is that you can usually grab discontinued items. I was able to grab a MAC Emote Blush which was discontinued and selling at ebay for a lot more than at the CCO.

They do carry some brushes and also some MAC pigments. The last time I was there, they had the MAC Fafi collection items and holiday collections. One warning though, if you find things you like there you will likely rack up a high bill fast! The prices seem so much better than at the store that you just grab and grab and before you know it...yeah $100+. Still, it's fun going there even if you just want to browse.