I don't even notice it.  Why in god's name would I stop to look at results between each letter I type?  I'm not just typing random letters.  I'm trying to make a word!  A specific word!  How is this useful to me?  If I'm searching for information on the word "destination" why do I care about results on "dragons", "dentists", "desks", "destabilization", "destitute", or "destiny".  I was searching for info on "destination."  That's all I wanted.  It just seems like a giant waste of bandwidth.