If you don't get a seat can you still hear/see the show while gambling or at a bar or restaurant?

We do this all the time. Stand along the outside and you'll usually hear just as well as if you were in the Wolf Den

Yes, there is viewing around the perimeter of the wolf den. 3/4 can be seen and heard from outside the circular set up. There is an attached bar and slot machines surrounding. Depending on popularity of the artist, you may have people obstructing your view standing as well.

You can still listen, it's in the center of the casino & has open views!