Thanks to the PSA by those that have been skewered on this list, one would do well to read the fine print very carefully to see if this "free" tank includes:
1. Prohibition to purchase propane from any other dealer (welcome to the captive market!)
2. Excessive charges to get out of the "free" tank deal, perhaps including fees that exceed the purchase price of buying your own tank!
Thanks to those that shared their experiences with crooked dealers - you've likely prevented some from falling into the same trap.