Is the difference between the Gladiator MK-II and the Gladiator-K just the ergonomics and the button layout?

I don't currently have a set up so I'm unsure on how much of a difference a grip can make. Do I need the extra buttons/hats? Is it worth double the price (after shipping) and the wait time?

I've been browsing this sub for a couple weeks now and have seen raving reviews on the Gladiator-K stick and have decided to purchase it (and possibly the throttle?) whenever it gets in stock. But now I came across the MK-II in stock for $100 in the US. Should I be holding out?

I play Elite Dangerous and War Thunder btw. Thanks in advance!

Edit: I should add, I don't mind paying for quality. I just want to make sure its worth while. A single stick for the price of a HOSAS seems questionable to a newbie like myself.