So, in the past I have owned a IPod touch but that was my extent of apple products. My current laptop which is a N586 Lenovo is getting long in the tooth and I refuse to use Windows 8, to the point that I figured if I was going to have to learn a new OS I might as well purchase a MAC. I ordered a MBA from the Refurb Apple page for 799, just a basic 13 incher with 4gbs of ram and I5. I figured if I liked what I got I could get a MBP with 8GB+ in a couple years. On my current machine I use no more then 3GBs at any given time anyway.. Anyhow! I wanted to confirm that the MBA late 2013 Gen could play Youtube HD videos without any lag. I was reading reviews and one reviewer mentioned it lagged on HD videos. I normally watch youtube videos at 480 or 720 and just wanted to see how everyone elses machines hold up.