Can get both for similar price. I know the z series has 100hz on it which the x doesn't but which is the better one to get? Will you really notice the difference with 100hz on a 37 inch TV. Obviously, I'd really prefer the 42Z3030 but can't stretch that far so which would make more sense of the above 2? Would it be better to wait a couple of months for the price of the 42Z to come down?