Is there really such a thing as a gaming router?

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http://ubuntuforums.org – Okay here is the story, I went to a local radio shack and I was looking at some newer routers (I was interested in upgrading to the n protcol for various reasons). I took a look at one of the packages and on the back, they had a chart that helped people choose what router they needed. There were 3 routers on the chart, and only the advanced two were "suitable" for gaming. I ask the sales clerk why, and he said it was because the "older" (I'm assuming what he meant was actually "cheaper") routers blocked some of the data from getting to and off of of the computer u (Hardware)