It depends. More expensive blenders tend to have more powerful motors, which makes blending, chopping, and pureeing easy. This gives you consistent results and a better texture. However, blade design is also important. I love the Ninja BL660, but its towered wing blender blades—a completely different design from the X-shaped personal blender blade—chops more than blends, which is fine for me but may not be fine for you. Instead of looking at price, consider features that help create a vortex for a smooth blend.