I do my own, and love doing it. I priced the cost (to see how much I was saving) and found quotes all over the map, price-wise, from a low of around $150 up to $500. Made me feel even more proud of my accomplishment.
It's not hard to do, and doesn't require a huge initial outlay, and isn't noxious- you can do it in the kitchen. It is however rather time consuming and that I fear is why the pros charge so much.
