K70 RGB not working in BIOS

[unplanned bacon]

I have a few questions about mechanical keyboards in general. You can skip this bit if you want, main point s after this
1. Why do they cost so much
2. What advantage do they give over membrane
Unlike a gaming mouse where I saw the difference straight away, mechanical keyboards don't seem to be as night and day as I would have thought, although as I use my mechanical keyboards and membrane keyboard back to back the difference is far more pronounced (never really notice until you do that).

I've had a Blackwidow Chroma (2 of them) and a K70 RGB, both have issues. Repeating keys and not detected until the lock screen respectively. Now my old wireless Logitech works all the time every time, I can get to the BIOS with it, it works fully, rarely get ghosting or repeating keys (if I do, it's a £15 wireless keyboard, it's not perfect). I'm generally slower on mechanical keyboards as well, but still learning them. There is a difference between the two types which I'm still trying to determine exactly how big, but with my old keyboard I fatigue faster from bottoming the keys out I'm guessing.

When I boot my computer the K70 RGB does not work at all until a couple of seconds after the lockscreen is loaded which means reaching the BIOS with it is impossible whereas with the wireless Logitech and the Razer I can first time, and they will be fully working from the second they get power.

Does anyone know how to solve the K70 RGB issue (this is really the main point of this thread), because this keyboard is near perfect otherwise?
Why is finding a keyboard that just works so hard, especially at the Blackwidow and K70's price point

 

[BigBadBeef]

To me, all fancy keyboards are decadence! The only real advance in keyboards in the last 200 years (typewriters included) that I would care to acknowledge is the fact that I can put mine in a dishwasher with impunity instead of having to clean it manually!

Any keyboard costing more than 50€ is nothing but elitist arrogance, price gauging for a big-ass manufacturer company stamp on a clonker which is so NOT different from everything else that they had to design specialized measuring software just to be able to tell the minuscule difference between the two.