I have very limited knowledge when it comes to PCs, especially for gaming. I had not gamed much for probably 5 years, but in the last year and a half I have bought both an Xbox One and PS4, but a few of my buddies and myself are considering dipping our toes into the PC-gaming water. What kind of price range would a guy be looking at to get started, and as I understand, you need to keep updating graphics cards, how often does one need to do that, and what does that cost as well? Keep in mind I wouldn't want top of the line anything, just a solid setup for the types of games I normally play (Battlefield, Skyrim, the Witcher, etc. are what I am playing right now). We are all huge fans of DrDisrespect, so we are interested in getting PCs for games like H1Z1 and Battlegrounds, which looks like a ton of fun, but I'm sure there are dozens of PC only games that I would be interested in as well.
I know this is a very broad question with large price ranges, I'm just trying to get an idea of what I would be getting into if we decided to go any further.