Sounds like a lot of cash to me! But I've never paid more than $10 dollars a cord...
One thing to remember about cottonwood is the amazing crotch figure. If you can get ahold of any pieces where branches forked the grain is amazing. Cottonwood carries crotch figure more than most species.
It's not the funnest species to work with...crazy tear out. You don't get the best shavings in most cases.
Here's an example of a couple from a single, huge crotch. Also look for dimples on the trunk, they come out as little cat's eyes.
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