The Blendtec is the best gift I ever received! We bought it two Christmases ago from Costco, I got two containers with it(the wild side jar and the regular) and it was maybe around $360. I use mine at least three times a day. Mainly for different smoothies, I can use kale and baby spinach and even a couple pieces of a lemon, rind too and even the core of the pineapple and its so smooth. It's just an awesome machine. I make a puréed vegetable soup too that is good, no need to peel all the veggies before you cook them since the blender purées them so well. Homemade salsa is great, I want to get into grinding wheat berries for flour, making almond and rice milks and different nut butters too. It's great in the summer for pureeing or juicing watermelon then freezing it in ice pop molds. Basically whatever smoothie you make you can then freeze. Found a recipe last week for Frosty Paws that my dogs are going to love this summer too.
I say go for it, she will be so happy and so will you!