Actually, Macbook Air has neither Broadwell nor Haswell:
"There is still no word on when we can expect Apple to update its MacBook line with Intel's Haswell processors. Intel introduced Haswell in June of this year, and we've seen numerous PC makers update their lines to include the new chips. Unfortunately, those looking to upgrade their MacBooks have been left waiting."
@wolley74 displays with high PPIs are extremely useful for graphics work and reading and gaming without having to rely on dubiously-implemented anti-aliasing methods. I wish my desktop monitor had a PPI like my iPhone does. I sit about 1.5' away from my monitor and can easily notice jaggies in games and programs. Unfortunately, it will be about a year before a 4K monitor is released in the size range that I desire (22" - 24"). Yes there is the IBM T220/T221, but those can't be driven at 60 Hz.
Left PCs behind years ago along with PC gaming. Been rocking a monstrosity of a laptop ever since but I think it's time to go the MacBook air/tablet route now. As long as it can drive a decent sized external monitor that's the way I'm going. The last desktop left my household 4 years ago. We have tablets and laptops with a home server.
I would like to see your "gaming" laptop beat my nvidia surround system...that cost me half the price ($1000)
Macbooks are nice, but I refuse to pay a large price just for the aesthetics. There are many laptops out there that are very, very nice looking... yet they could completely demolish the Macbook in terms of hardware.