It would be easy to think just the opposite, that a more competitive marketplace would yield better games all around. Unfortunately, we haven't seen much evidence of that effect so far as more and more venues for table games have popped up.
The good games seem almost accidental based on gaming regulations. As time goes by and the casinos become more a staple of state finances, gaming agencies tilt more and more toward the gaming interests. As a result I predict that some of the new jurisdictions will begin a slide into mediocrity rather than pull up the offerings at their competition. This, with or without online competition.