SIOUX FALLS, S.D. — In most furniture stores across the country, shoppers can find the latest in immersive technology.In South Dakota, Montgomery’s is showcasing it in a new immersive motion gallery called Smart Comfort in all four of its stores. Leaders say the Smart Comfort collection redefines the home theater seating experience by merging fluid motion and weightless zero-gravity support with high-performance, immersive sound systems.“We’ve...