I use my Cuisinart food processor for things such as making pie dough, shredding cheese or carrots, slicing onions, grinding nuts, etc. I don't use it as much for chopping vegetables as I like to have neat, evenly-sized pieces (that OCD thing again!) and food processors don't do that. If the vegetables are being chopped super fine, such as for hiding in a spaghetti sauce, then I use it. I make some salad dressings in it, but I tend to prefer my blender for soups. I have a Vita Mix blender that instantly purees everything, and will even heat it up. And of course, it doesn't leak. My newest Cuisinart doesn't leak as much because it has a sealed gasket thingy, but my older one did a bit. Not really a problem for salad dressings, but wasn't as good for a large quantity of a thin liquid.
With that said, I couldn't live without either of the those two appliances! When my old Cuisinart died (it was almost 23!), I was completely frustrated till I replaced it. As for the Vita Mix, I can make things with it that I couldn't with a regular blender. For instance, I dump in 8 oz of yogurt, 2 Tbsp. sugar, and a 16 oz bag of frozen fruit, and we have a dessert that's the consistency of soft-serve ice-cream but is fairly healthy. Other blenders can't handle the completely frozen fruit. I also use it all the time to make smoothies -- a good way to use up fruit that's past its prime. Not spoiled, but apples that are no longer crisp, oranges that are a bit dry to eat normally. Fruit I would normally end up throwing away. I make soups, puddings, and batters in it as well.
So, is "vegggie" a Canuck spelling also?