you can certainly move around as usual in games: with an analog stick
VR shoes and treadmills are a waste of money and physical effort. I'm already trashed in less than an hour playing real combat by swinging a virtual sword in my hand, let alone by actually running around with my own legs
I'd like to see VR head in the direction of The Matrix where I could lie down and "plug in".
I can't imagine playing something like Fallout 4 with those shoes, besides the fact I don't want to walk the entire map of Boston, I'm pretty sure I can't outrun a Deathclaw IRL, or chase down a group of Raiders, which brings me to a point; how are they going to simulate running? Which you do in 99% of action, rpg, open world, or survival games.
I don't want to rely on Jarvis stopping my Ironman shoes before I crash thru a window in my house, lol.
Moonwalking in an adventure game? Sure.
Moonrunning for your life in Dying Light? I'll pass.