I totally agree with Will. To prove his point here are some of my finds.
1. Large, japanese forest pot. Free, in the dumpster.
2. Large, japanese rectangle pot. Free, in the dumpster.
3. Large boxwood. Had rust from overhead shade system on the leaves making them a bronze color, hadn't sold due to color for 2 or 3 years. Nursery man that I took the time to make friends with gave it to me for free. Just wanted to see pictures of what I have done with it.
So be nice and don't be afraid to dumpster dive, never know what you'll find.
Newt