I just bought a pamdree mix from Millers LLC in Hyrum Utah (you can google them they supply garden centers all over the intermountain west) and they did several tests to get a better pH and balanced nutrients in a clean and organic mix. I haven't planted anything yet (it snowed yesterday) but it's nice and fluffy and if you live nearby their plant you can pick it up in bulk. It cost me $80 for 1 cubic yard and was more than enough for my 10 3 foot 10 inch deep bed. They even scrubbed the bucket clean before scooping it and placing it in our truck. Does that sound like an okay price? This is the first time I've done square foot gardening although I've got two row gardens out back (we have high winds and need the harder soil for the plants that could blow away otherwise). I like that it was easy. I'll keep you posted if it grows anything.