There’s no mystery to Apple’s overarching approach to designing gadgets: It likes to make ‘em really thin and really light, and it likes to pack in as many pixels as possible. That’s what it did with this high-end laptop, which starts at $2199 and goes way, way up. Its 2800-by-1800 Retina display has nearly five times as many pixels as you’ll get on a more mundane 15” notebook, making for the most ink-on-paper-like images you’ve ever seen on a computer. And as long as you can live with Apple’s less-is-more philosophy — you don’t get an optical drive or Ethernet — this 4.6-lb. aluminum powerhouse is a joy to use. Those without unlimited funds should take a look at the 13” MacBook Pro with Retina Display, which brings similar features to a machine with a $1699 starting price.