C.C.
I used to be the facilities manager for a chain of restaurants best known for their smoothies. We had 700 restaurants, and used Vitamix blenders in all of them. Hands-down, the best blender for making drinks, but WAY over your budget. I will tell you this, even with the best blender on the market, the restaurants still use flaked ice to begin with. There isn't a blender out there that will blend large cubes of ice consistently. If you're able to buy crushed or flaked ice (or set your freezer to make it that way), you will get the best results.