Originally posted by iChan
i like one buttoned mice.
Damn straight.
I don't like scroll wheels all that much. Too much finger work. (There are much better finger exercises than spinning a wheel.

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Plus, often, I click above or below the scroll bar to jump a whole page and skip areas of a page I don't want to read. So I don't need the scroll wheel.
Although I can see the beneficial functionality of a two button mouse (and I deal with those quite often at college, and I have at my H.S. fairly often as well...I know what they're like), I like the simplicity of one button. And, actually, if you think about it, you don't get things done too much faster with a second button. You still would have to use option-click or command-click for some Finder shortcuts, in which case a four button mouse would be sufficient.
(Oh, and I used to use a Kensington four button + trackball for about a year. That was HELL, since LITERALLY 5 to 10% of the time I clicked a button on that damn thing, the computer didn't respond. That s*** didn't happen with any other mouse as often, except maybe the MacAlly iBall bondi blue

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Even with a four button mouse for shortcuts, I think the "livable" factor depends not on how much functionality you devote to the mouse, but on how often you want to use strictly keyboard shortcuts.
For example, I want to delete a selected file from my desktop. (1) Drag to trash + (2) File menu > Empty Trash + (3) Confirm - takes about three seconds. There is also the likelyhood of misclicking. In contrast, (1) click + (2) command + delete + (3) option + command + shift + delete - takes about one second. There is less of a likelyhood of misclicking, since only one mouse operation, the click, is required.
Basically, the preference of a one or two button mouse comes down to the force of habit of how much someone knows/wants to use key commands. I wouldn't be surprised to meet a one button computer user, who relies on key commands more often than the two button mouse user.