Do people really view wireless as being that bad? I have never found a problem with it myself.
At my flat, there is only one device that is hard wired into the router - the PC in the lounge, everything else runs wireless which are:
* Both my PC and PS3 in my bedroom, which is on the other side of a very long house.
* My phone
* The neighbours upstairs pay us £10 a month to wirelessly ride our internet connection, which consists of a computer and 2 laptops.
That's a total of 7 devices sucking up the connection, 6 of them wirelessly. On top of this, I am "running some applications" to make me "invisible" to people that don't need to know what I do if you know what I mean, at all times, which eats bandwidth.
At any time, the worst ping time i've seen is 75ms, it's average is between 32-51ms, and at it's best, it's been as low as 7ms - measured from my PC. On the PS3, it's usually around 40-60ms.
Sometimes, in a good room there is no lag at all, even though I could be playing with people from across Europe and across the big ol' pond. In fact, that time that my PS3 felt like it was being overclocked (everything was running super fast on GT5 - replay saved), I was in a multi-national room, and there wasn't a hint of lag, and the frame rate was firmly stuck at 60fps.
That's depsite all the devices that are constantly connected to the router, which hasn't been reset in months, across long distances, and the download speed is rock solid at 6.6mb/s (49.3mb connection) at all times whether I test it from my phone, Pc or PS3.