This year, like every year, Apple is running a Black Friday promotion, however this year if you are looking to save the most cash on a new Mac, the best bet is to look elsewhere. BestBuy.com has reduced prices on a wide selection of Macs. The 21.5-inch iMac with a 1.4GHz Intel i5 processor, 8GB of RAM and 500GB hard drive has seen a $200 discount to $899, which is around $80 less than the lowest price found anywhere else.