@onemoretime has already stated this case better than I could have.
While I too am tired of our current way of doing things, I also put more faith in the possibility of prudent Representation in our Democratic Republic than @Myrtle seems to.
I think the foundation of our electoral system is sound. There are inherent problems in implementing direct democracy within a country as large as ours is.
Lastly, I also have faith in the ability of (the motivated within) the people to educate themselves, but that faith doesn't extend so far as to preclude the need for representation.
With direct democracy you will never have the unity of vision that is achievable with a Republic.