I think the taller the shoe, the easier they are to walk/dance in. It’s weird! I have never found a pair of 6" heels that are comfortable. But ALL of my 8" shoes and boots are extremely comfortable!
I have never tripped off of 8" heels, either. I think they make the taller shoes more sturdy. Plus, I think the taller the heel, the taller they make the platform. So the 8" heels have a taller front platform ratio when compared to the shorter heeled shoes.
So it feels like you’re not walking in heels when you’re in the tall shoes (even though you’re teetering precariously on a thin stick almost a foot above the ground)
I think the brand VIVID makes the most comfortable tall shoes. I have a pair of 8" Vivid shoes and they are so comfortable, they’re better than the Converse I wear everyday! The sole is very cushiony and they even have a cushion for the toes to keep your toes from sliding out the front and looking funny.