Today only, until 10 pm ET, ElectronicsValley via eBay offers the current-generation 2.4-lb. Apple MacBook Air Intel Broadwell Core i5 1.6GHz 11.6" Laptop, model no. MJVM2LL/A, for $719.99. Coupon code "CMADNESS10" cuts it to $699.99. With free shipping, that's $20 under our mention from two weeks ago and the lowest total price we've seen. (It's a current best by $104.) It features an Intel Core i5 1.6GHz Broadwell dual-core processor, 11.6" 1366x768 LCD, 4GB RAM, 128GB flash storage, webcam, 802.11ac wireless, Bluetooth 4.0, USB 3.0, Thunderbolt, and Mac OS X 10.10 Yosemite.