I've had a WASD Code keyboard for a few years and it's been great. I picked up the Razer BlackWidow Chroma TE TKL a few months ago in order to reverse-engineer the USB protocol for Chroma so I could get a Teensy 3.6 to emulate a Chroma device in order to get an off-screen notification LED in Overwatch when my abilities were off cooldown (the keyboard does this with a pulsating key). Couldn't get the Wireshark USBPcap stuff to work but it's been an OK keyboard. I like the clack of their Cherry KX Blue alternative switches. It does feel a little cheap though...the Code feels like a professional piece of hardware (nicer plastics, feels solid) while the BlackWidow feels much more like an EXTREME GAMING ACCESSORY. In practice it hasn't broken or anything close, but it just doesn't feel solid like my WASD, and given that they're comparable price-wise ($100-$150 range) I'd expect a little better.

The Zowie FK1+ mouse is great if you like the Intellimouse Explorer. It's ambidextrous and symmetrical. No software to install, you just click the button on the bottom to switch the DPI setting, or some chords when you plug it in to set things like handedness. Works great, can't recommend enough. The only not-amazing part is the scroll wheel for desktop use; the detents are spaced pretty far to ensure accuracy when switching weapons or whatever in a game and work less well when trying to e.g. Rip through source code, but MW acceleration mostly fixes that for me. I'd totally try a Zowie keyboard after being so impressed with their mouse. Zowie is made by Benq, so they've been around for a while and have made professional products for a while too (I love my BL3201PH 32" IPS 4K screen).

I use a Razer mouse at work, and it's still going strong after five years of heavy usage. So, like anything, YMMV.

To be honest, even if they only ever lasted a couple of years, I'd still buy Razer mice. All non-gaming mice nowadays seem to be awful, cheap crap, and most gaming mice are over-decorated contraptions. Razer mice seem to be the only one they combine good, simple ergonomics with high precision and a quality feel.

Try Roccat. They're amazing.

Well that's about how long the Naga lasts for me. I just budget ~$50/year or so for a new one and don't really worry about it. If I could find a quality replacement that has the like 14 or so buttons it has then I'd go for it. But at the moment I use every single button and wouldn't give it up for anything less.

I'm on my third Naga. Once you get used to the extra buttons of "MMO mice" it's hard to use anything else. I tried to switch to the Logitech G600, but the shape is all wrong.

Mine barely lasted a few weeks. Threw it away and made a note never to touch anything by Razer ever again.