Wireless only sucks, if you have crap equipment. My Belkin router really does suck, but it is still usable. I'm hoping to switch to an AirPort Express (or WDS) compatible ISP in March, at least then I'll be using decent equipment, thus making my wireless experience 10x better. I hated it when I was plugged in to my USB DSL modem. If I wanted to take the iBook downstairs, I had no net access, unless I took the modem with me. Again this resulted in another cable, and more often than not, a USB extension cable too...
Long live wireless!