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Respectfully? Hardly.
Respectfully? Hardly. However, I am used to anonymous shills so whatever...
So, let's see... "So you're looking at closer to 600Mbps for a dual-N radio AP" Ok, theoretically you may be right. In the real world? Nope. No way. (especially if you have an xbox nearby apparently). Gig ethernet on wires will beat it every time (of course) and 100mb switched on wires will also. Sure, wireless is getting closer but we ain't there yet. Are you really telling me that you are getting 600mb over wireless of actual throughput in a working environment? Show me the study.
Security. Nothing that spews packets into the air can be considered secure. I don't care if you encrypt them, deep fry them in the Colonels seven secret herbs and spices and then dip them in ranch dressing. Some bright spark will figure out how to decrypt them and then they are free for the taking. And ya, 802.11i is the encryption standard. That's nice, but the article is about an 802.11n deployment. As part of that deployment you get 802.11i encryption built into the n gear...aren't you clever.
Next: "How do you control who gets on to your wired network again?" Hmmm.. to tell you that would be, for lack of a better word, "insecure". ;)
Structured wiring is not cheap. Right you are. Neither is "n" gear. Once you factor in the extra cost of n nics and access points it becomes, at best, a toss up in cost. If you have to move supporting structure or if you have asbestos in the walls or ceilings then maybe wireless is the way to go. Anthing other than that and I shall avoid the wireless plague. I've heard way too much brave new world hype over the years and this is just the latest salvo. If I had a nickel for every time I was told that something I was thinking about buying was secure I would own the planet.
Even if the speed is the same (and it is not) wired is still more reliable and more secure. Completely secure? No, just more secure simply because it does not put packets into the air for anyone to pickup and work on. I will take more secure, more reliable and faster over more convenient any day.
Respectfully,
me