said by EdT:
5ghz is a gimmick, name me one device that uses it ?, plus you would have to upgrade all your wireless NIC in your network to 5ghz and if anyone devices that uses n or slower it will default back tot he slowest frequency !
Almost every device I own supports 5ghz: Apple TV, Retina MacBook Pro, old MacBook Pro (3 years or so), iPhone 5, Nexus 4, iPad, ASUS RT-N665u, Galaxy S3, the HTC One I have on pre-order, etc.
802.11ac, the next standard after 802.11n, -only- works on 5ghz bands, which is why all 802.11ac routers are 450 + 1.3ghz (450 802.11n on the 2.4ghz band, 1.3ghz 802.11ac on the 5ghz band).
It's 2013... 5ghz is pretty pervasive at this point. Even 5 years ago 802.11a on 5ghz was a good choice for urbanites with polluted 2.4ghz bands.
5ghz really is the only choice right now and it was never a "gimmick".