Paid $11 a gallon in five gallon pails for Detroit PowerGuard yesterday at Covington in Beaufort, NC. They said it is rebranded Mobil Delvac; I've always got good analysis results when I have used it in the past.
In Ft Lauderdale, I found the best price for Rotella was usually at the NAPA store on SR 84 near Route 1. They had it (40w CF2) stacked up in front of the counter along with their house brand (actually re-labeled Valvoline Fleet Plus) which I prefer since it more within DD's specs for ash than Rotella CF2 is. Flamingo Oil distributors in North Miami is another excellent source.
Still, that's a good price for Rotella, hope someone nabbed it!