"I am surprised by the lack of interest. Is it the price or the weight? I would assume weight, as no ULer would want to get caught dead with 7-10oz grill on their spreadsheet."
Lawson, your product looks great. But as Ken said, you are hitting a niche. This fits somewhere in between car camping and backpacking. A grill is mainly used for cooking fresh meat, fish, potatoes, ect. For car camping, you don't need an ultralight grill. For backpacking, people usually don't carry steaks or any other food that they need grilled (but it would be very useful for fish that you catch). Backpackers usually take dehydrated stuff that just needs hot water.
"But when I think of these grills compared to wood burning stoves that sell like hot cakes, but cost ALOT more money, are less versatile, take up more room in your pack, and can weigh almost as much if not more I can't wrap my head around it.
Even with conventional gas stoves. The weight of the stove + the fuel canister can be/is more.
With a grill, you don't have to carry any fuel. All you need is two small rocks and some twigs and your good to go."
The problem here is that you don't need a grill to cook with a pot over an open fire. You just shove your pot right into the coals. No weight involved. A grill would be useful, but not nessecary.
Wood stoves are used for legal reasons and to avoid burning hard ground surfaces.
On a recent bushcraft-usa meetup a guy carried in 2 tri-tips and cooked it over a lightweight grill, but that's not something that normally happens while backpacking. You might have better luck if you sell these on bushcraft usa. They really appreciate hand made stuff over there.
This item would be mainly used for base camp backpacking.
Personally, I am very interested in your grills. I would probably use it for cooking a bunch of fish for a group.