I wanted a smaller size than the 64 oz container that came with the Vitamix. I make a 16 ounce shake every morning, so I was looking at the 32 oz vs 48 oz containers. I'm glad I got the 48 oz, when I want to make two shakes at once it would have overfilled the 32 ounce container. The 48 ounce is well made, fits under my counter, and has a nice weight to it.