I find it odd that people are so quick to fear or kill spiders. They're rarely aggressive towards people when not attacked first, and even then they don't often try to poison you. Live and let live; they'll stay out of your way if you stay out of their's. Hell, the average pet is just as dangerous to you if not more when you push them.
Then again, I live in rural Australia...I have about half a dozen spiders (that I know of) in my room right now, and the occasional huge one that wonders in. Had one bigger than the size of the average person's hand on my leg in the shower a while ago, poor thing couldn't get out of the water without help.
Maybe it's an environmental thing, some people just aren't used to it. It's human nature to fear the unfamiliar, after all. I wouldn't handle one myself and would move out of the way of one running along the floor, but I don't mind being in the same room as them.
Also, watching a spider clean itself or make it's web is hypnotic...does not look natural, and yet it is.