Why is Arby's so Unique with its Roast Beef and Corned Beef?

The Bald German Goes Eating

I went to Arby's today and had one of their Double Beef 'n Cheddar and Corned Beef Reuben.

The Bald German
5309 Murfreesboro Rd
# 171
La Vergne, TN 37086