My food processor and my Vitamix are the two kitchen tools I use the most. I have the Breville Sous Chef 16 Pro Food Processor, and while it's not cheap (like a Vitamix), it's also an investment that will last for years (like a Vitamix).
This food processor is a definite workhorse and has gotten me through two cookbooks and endless recipe testing. I love using it to make things like falafel, dips and energy balls! Since these recipes typically require “a little bit of this” and “a little bit of that”, I like to use the food processor as it makes it super easy to add ingredients while you’re preparing them. Oh, just wait until you try my Beet Cashew Dip in this!