I have been searching around the different pay-to-dig sites and it seems to me that if they could dig enough valuable items out themselves, they wouldn't rent it out to visitors. Are there any areas in the U.S where you can fossil hunt commercially without the huge cost associated with the pay to play sites? For example one place in Maryland says they average around 10-20 trilobites for a 4 hour dig. Since each (small) one goes for around 5$ that wouldn't be the best opportunity. Any ideas for a fossil hunting adventure that has enough volume to support the adventure? Not going into the ethics of commercial fossils and what not.