[HELP PLS] Server For Botting

I am looking to buy a server that I can use for botting on multiple accounts by using VMWare. Currently my own PC can run about 8 bots at once, but I would like to be able to run as many as possible.

I built my own PC so I do have some hardware knowledge, but looking at servers online I am pretty lost, would appreciate if anybody could give me advice or a recommendation about a good server for hosting bots.

I am setting my budget around $1000-$1500. The bot will be used for the following games; league of legends, sw:tor, path of exile, neverwinter, hearthstone and diablo.

Currently I am only running a league of legends bot in vmware with the follow specs; 1vCPU, 1GB RAM, 15GB HDD.
My CPU is AMD Phenom II Quadcore 3.20 GHz, 16GB RAM and I have a 1GB Radeon HD 6870