I ended up not going for a tkl keyboard like originally planned but rather got the Ducky Zero DK2108 with the red switch. It's a plain looking keyboard with no real bells and whistles compared to the gaming keyboards out there. It's a pretty minimalistic keyboard that looks like an ordinary keyboard you get with a computer purchase but i think this will work out good for work. It comes with a calculator button which will be useful as I'm using that a lot. There's a lot of weight to it as it's a good amount heavier than my K70.
Either way for under $100 I can't complain too much.
Truthfully the gaming style keyboards waste a lot of resources on lighting modes that you try once as soon as you get it, and then never use them again. If I didn't often game in a dark room, I'd never even bother with a backlit keyboard - you usually make a sacrifice on keycaps when you go backlit.
Agree the calculator button is nice. I had to resort to AutoHotKey to do the same with my setup.