My wife and I have been using the Magic bullet for years and years. It took lots of bearings and has helped create many awesome recipes. Finally, after all this, the base broke. We had lots of cups and blades but without the motorized base they were useless. We figured this was the time to see what else was out there and we bought a similar item of a different brand. It only came with 2 cups and within a week 1 broke.
That was all it took for me to come back and I ordered this Magic Bullet set the next day. It showed up a day earlier than expected and we're back to smoothies every morning. All the old cups and bases work with the new, and vise-versa. Plus, the motorized base is more robust than the previous one (again, which lasted many years). I couldn't be happier and for the price offered on Best Buy, it's a deal and a half!