Im Even More Undecided

I've been researching the available Pre-N routers available and I've decided that no one likes their router. Every review page i've been too, there is always about half of the reviews that are horror stories and then there are the other half that rave about the product. This leaves me even more confused. Right now I have a Linksys 802.11g router that has worked great, so why do I even need a wireless N router. The routers I looked at were the Linksys WRT300N, Linksys WRT350N, and the Linksys WRT600N.