Things that are upscale are made for rich people — they are high class, well made, or just plain pricey.
If your friend takes you to a fancy, expensive restaurant for your birthday, you can describe it using the word upscale. Upscale neighborhoods are full of lovely, high-priced homes, and upscale vacations might involve yachts, exotic beaches, and private planes. Upscale is the opposite of downscale, which you could use to describe a run-down motel or a grubby, cheap diner. Both adjectives first came into use in the mid-1960s.