I was told by some guys putting up new poles that you can buy old ones at the "Wixom Pole Yard" for $1 per foot. It is on Wixom Rd. just north of I-96. Just in case you need some for a project.
We bought some 3 or four years ago here for .25 a foot as they were replacing the lines here. I think new would be a different though. I guess it all depends on the age and condition also. A dollar a foot doesn't sound to bad especially compared to other building materials.
Patrick, I've forgotten what the price was on new ones, but it was way up there. My brother paid $1 a foot for used ones, but in very good condition, and we used them as the beams for a 4' wide foot bridge to an island in his pond.