On a more serious note, if you can be arsed and don't overload on fruits it's probably a good thing to be doing, I just got fed up with it. Might say more about me than the benefits of nutri bullet.
Plus, nice fruit is expensive. Once you've got a punnet of blueberries, couple of kiwis, punnet of strawberries , couple of apples. You'll be having to get through 8 or 9 quid for a couple of smoothies. Unless you just mush up bananas like a kids meal of mush.
You've brought a money musher...