okay, let me get this straight...libertarians constantly talk about personal freedom and liberty. shouldnt people have freedom to directly elect their senators?
As Emsworth said, it's more about voting being a means to an end than a means in and of itself. If we had a dictator who was completely incorruptible, all wise, all knowing, and basically was able to maximize personal liberties without bringing harm, then we wouldn't need democracy - problem is we don't, so we need a system that can bring about as much liberty as possible while creating the least amount of harm. Some libertarians feel that this would involve the state governments still electing Senators.
And I'm curious about why you don't use the Shift key!
Anywho, I think the elector system is fine, but does need changes. Maybe distribute the electors by percentage of votes received or something like that.