Grass is especially green when you look at it online, probably photoshopped!
Online quality can be faked, we're talking about real guys you meet face to face. There are no doubt more quality guys in bigger metro areas. There are also more nutballs, and more people who don't want to commit because of all the temptations. The question is whether you have the awareness that gets pass all the nutballs, the shoppers, the voyeurs, ... etc. and do what it takes to be around quality guys. You do need to not limit yourself to the immediate neighborhood in the big metro area you move to, sometimes whole neighborhoods are populated exclusively by certain personalities. You may have to take the metro or drive for 20-30 miles to meet up with someone. But as GOJock and Mikemikemike said, there's plenty to go around.