I want to upgrade my gaming but can only do it one at a time. Should I get a monitor, mouse, headset, or keyboard first? What I'm upgrading from: Monitor: Samsung 60Hz 27" 1080p 2ms response rate; Not sure about the exact model, but these are the specifications. Oh, and this is a laptop, but it's also 1080p. Will upgrade to ASUS ROG Swift 2K. Mouse: Logitech Marathon Mouse M705, Wireless, Laser Sensor (Sensitivity 1000), 7 buttons, tilt scroll, 36-month battery, 2.4GHz receiver; I plan on upgrading to a normal Viper. Will upgrade to Viper. Headset: stock headphones; These work for now, but I have to use the onboard mic on the laptop. Will upgrade to Kraken TE OR Tiamat 7.1 V2. Keyboard: Logitech G15, Membrane, six macro keys, LCD statistics monitor, full size, multimedia keys; I'm pretty happy with it, but it's a membrane keyboard and I probably need to upgrade it to play competitively. Will upgrade to Huntsman TE.