Joful,Not around here! I've bought 12/4 and 16/4 walnut from local mills on a few occasions. It never broke the bank. Walnut is very plentiful in eastern PA. My yard is 80% walnut trees.
A local tree guy tells me he used to get over $200 at the mill for a large walnut tree, but now they turn most loads into firewood. There's just not enough demand right now.
I hate to rain on anyone's parade, but it is the same story here. The tree service guys in my area cut walnut every week and never does it go anyplace except into their huge cippers or for firewood. They tell me that the mills won't even talk to them unless they are cutting a large lot of good straight mature trees that are not likely to have metal in them. And as for the fancy walnut that is in demand, not enough of it to make it worth their while, but that will not make me feel guilty when it keeps my home warm!
Take care,
Tim