I got a Blendtec about 5 years ago, and have used it a ton of times to make "green smoothies" after workouts. Instead of having a milk and whey shake, I have a kale, carrot, cucumber, hempseed, chia seed, blueberry, banana smoothie. With the number of times I've used it, it's well under $0.50/use at this point with no signs of slowing down. I quit using it for awhile there, but am back to using it 3-4 times a week. I did have to get the container replaced, but it was under warranty so no worries there.
I tried the same thing with a cheap blender in college, and it was awful. It was more like a chopped salad suspended in water than a smoothie.
Obviously you could go the cheaper route of just eating the salad. For me when I'm trying to put on muscle mass, my appetite is relatively low and smoothies are an easy way to get extra calories in. Eating all of those ingredients in a solid salad would be a huge pain, and I probably just wouldn't do it. Right now I can drink the smoothie and have dinner an hour later. Eating all of that in a salad would fill me up for a good 2+ hours.