The best niche is the one you create make money on and never talk about to other internet marketers in a forum. It's just that simple. Find a market you can generate traffic from and don't worry about the price per click or what kind of income you might make, after a few weeks (if this is your 1st time) you'll know if it's worth going after or to try to develop another niche...... Most people try to compete with the larger niche's on a shoestring budget (or free which is all the craze these days) and fail over an over. You can't compete vs people who's budget is 100x higher out the gate. Beat up on the little competition and move up. Nobody becomes rich overnight, well maybe if you win the lotto but that's about it.