Yeah, but wireless LANs can be annoying too. Like my PS3 that sits just far enough away to make my connection to my wireless slow and crappy.
And then theres different hardware. My Wii gets a wireless signal perfectly, sitting right next to the PS3. And my laptop, which seems like it could recieve a wireless signal from the moon and still download fast.
And my other computer, which sits closer than the PS3, and gets half the strength of the Wii.
Sometimes I just like crawling around in the attic crimping cables and running them down the walls of the house.