Despite the 5K and 10K races with a low turnout, I'd say the price of registration to enter the race was pretty reasonable. That's especially a bang for my buck for a 5K that does not have a huge crowd.

I am unsure about the course similarity to the Casino Bridge Run,

The course goes through the Delaware Valley University campus. You will run on mostly macadam through the agricultural area passing by corrals with horses and newly minted colts and Phillys. There was a beer truck afterwards which was great.

The Ultimate Towner is about as much fun as you can have on a Sunday in May in Jackson Hole. I've been participating in the Ultimate Towner since it started in 2012 and it just keeps getting better every year. This is not a grueling sufferfest like the Tough Mudder