Apple's MacBook Air remains one of the finest laptops we've reviewed here, though they do come at a cost. If you're interested in Apple's most portable portable, Best Buy has a good deal going on today and tomorrow — all four standard MacBook Air models are $200 off and come with free shipping.That means the entry-level 11-inch model costs $799 right now, which gets you an 11.6-inch screen, 64GB of flash storage, and 4GB of RAM. If you're interested in the 11-inch, we'd recommend stepping up to the $899 version, which comes with a more usable 128GB of storage. The base 13-inch model comes in at $999, which is probably the sweet spot in the lineup. It comes with 128GB of storage and 4GB of RAM — you can bump that computer up to 256GB of storage for $1299. If you're interested, we'd recommend you act quickly. While Best Buy says the deal is on through Saturday, January 26th, you never know when stock will run out, and Best Buy says these deals are a "limited quantity."