Ordered some Ash from Dean Hardwoods Friday (see Ad at right). Had it milled S4S 15/16" X 3" X 10.' "Chad" priced it by the pc @ $13.34 ea. Picked it up today; the stuff was clean & straight with minimal imperfections. A good deal. I'll be back.
All I'll say is The Hardwood Store (for example) seems to have competitive prices on 5/4, S4S with a 20% waste factor added in. ;-) - but if you've already got a good supplier it can be wise to stick with them.