Liquidamber or American Sweetgum is a fast growing shade tree with A+ fall colors.  As long as it is not planted near where people walk a lot (sidewalk or driveway) it is a wonderful tree to consider. Roots can grow thick near the soil line and that can damage pavement or be a tripping hazard along with interesting seed pods.  This tree is in a 38" diameter container and the retail value is $900.  Selling it this fall for $400.