Are Dixieland cattle that much cheaper?  

We pulled up the USDA report on the sale in Collins, GA which showed either a very poor sale or the cattle are just much lower in that region.

Collins, GA USDA Market Report



Also, it looks like that barn has a recent checkered past with cattle trader practices:

https://www.gipsa.usda.gov/Newrelease/2014/2814DixieLSSikesConsentDecision.pdf

https://www.gipsa.usda.gov/Newrelease/2013/11813DixieLSSikes.pdf