Headcheese.net is an interesting name, too bad its not the dot com.
Unfortunately, I don't think it's worth much even going directly after the headcheese market since headcheese products are typically offered under well-established brands catering to deli-style meats. Think household consumer brands. Usually, the people who have discovered headcheese and enjoy the experience/taste have those specific brands that they've become familiar with and regularly buy, even if as a generic product from their local fresh deli.
It may be possible to find one of those packaging companies or a chain of fresh local deli's willing to buy this domain name, so it might be worth the effort, but I'm venturing a guess that it'll be a hard sell simply due to the "brand" factor and not being a dot com.
On the flip side as a creative name for a blog or satirical site, the potential is there for a sale to the right end user for $50 to $250, it really depends on the potential buyer and the vision they have. It's the type of domain the right buyer could have some serious fun developing.
Put some hard work into it, ride it out and see what happens. Worst case you drop at expiration and lose a meager $10 bucks...lesson learned.
But what do I know, I'm just a simple chimp.
Good luck!