From what I've read about Polo, it, along with Drakkar Noir, is being gradually phased out in terms of popularity, with Creed taking over. I think about aftershaves being "phased out" and I argue that Clubman is still going strong(1830), Skin-Bracer(1931), which suggests that one shouldn't be told "No one wears that anymore" when it comes to Polo&Drakkar Noir.
I used Polo green in the late 80s and really liked it, then got away from using cologne for a while. Around 2005 or so I got back into it and was going to buy the green, but sampled Polo Blue which I enjoyed and ended up buying. These days I'm using more AS than colognes.