So I'm planning on building a Plex Media Server out of some spare parts. I have a Asus Sabertooth Z87 (https://www.newegg.com/Product/Product.aspx?Item=N82E16813131976) which uses LGA 1150 socket. After searching for a a CPU I've come across an issue. One of the better CPU's I get get is either a i7 4770k ($386) or a 4790k ($487). On the other hand a i7 7700k is about ($309). However the the i7-7700k is an LGA 1151 which is not compatible with my MOBO. Would it be worth upgrading my MOBO?