No, what he is trying to say, (bless his heart)is that most things marketed as "gaming" are overpriced, huge ripoffs. If you want to get a good deal, like anything else you have to be willing to do some research.
I don't know too much about routers, but you can see if your router has antennas that you can detach and upgrade in order to get a better signal, I would check that out first. If you're dead set on getting a new one I'm sure you could find a great router in that price range.
Dual band does not equal gaming router. You need a 5GHz compatible device to take advantage of dual band anyways. Also "gaming" routers are just overpriced marketing BS. --- MacBook Pro with Retina Display | 15.4" 2880x1800 | Core i7-3615QM @ 2.3GHz | 8GB DDR3 1600MHz | GT 650M 1GB GDDR5 | 256GB SSD | OSX 10.8.4 | Windows 8 Pro