I make salad dressings, marinades and smoothies with it. The larger ones are just too big for small batches. The smaller Jar was $110, They now have a personal smoothie jar for $130 and a nut butter jar for another $130. The have to make a profit to stay in business but on top of the $300 or so I paid for the machine, it's a bit excessively priced.
I am so happy with this size. I have had my blendtec for years. I recently bought two new containers because my were looking rough. I us my blendtec almost daily. Plus on weekend for margaritas.