One of the reasons why we see fewer and fewer independent inventors at the Global Gaming Expo is that the cost of the booths are so high.  This is not a complaint, just a reality.  Independent developers do not have thousands of dollars to spend on a booth.  Developing table games is relatively cheap.  I've worked with some inventors on developing video poker style games and you can't really do this for less than 100K given the cost of the machines themselves.  The two largest expenses for table games is for the patent work and for the math work.  Once those are done, you need a felt and a table sign and you're ready to go.