When I had "press button to switch layer permanently", the LEDs indeed made a huge difference. I didn't need to look at the keyboard directly, my peripheral vis

When I had "press button to switch layer permanently", the LEDs indeed made a huge difference. I didn't need to look at the keyboard directly, my peripheral vision would notice that it stopped being blueish and started being redish, which meant I was on Layer 2. But then layer I switched to "layer 2 is only active when you're actually holding the layer 2 key" mode and now the leds are not as important anymore. Still, they make my keyboard look cool :) Also, on my configuration Layer 2 keys each have different colors based on what they do (macros are pink, media buttons are blue, arrows are green, etc.). I have now mostly memorized everything, but in the beginning it was good to have them to help me remember. Anyway, I like LEDs. But I would happily buy a LED-less keyboard if it meant saving $100.