There is a fine balance that can be struck between free to play and p2w (see TF2, Dota etc), but Era has gotten kind of ridiculous. At least in some games (TF2) etc, even those with less weapons can have an advantage because of their skill, but games like Era take very little more than holding down the shoot button with a gun that you shelled out lots of cash for.
It's sad, really. I really want to love Era