Since I got my PC 1 month ago I've been using a linksys USB wifi adapter to connect to my home network. But I only get about 2 bars and I'm afraid this might lead to lag when gaming. I'd like to upgrade to an ac router but don't know if it's worth the money if I could just use a repeater to extend the signal of my current router which isn't ac. Should I spend the money and get another router for my house or should I just buy a repeater and give up the advantage of having an ac router. I don't play multiplayer shooters or anything but I do play on mine craft servers and play many mmorpg's not to mention I want faster internet and downloads.