I'm a fan of mail order meat, especially for the hard to find items. For dry aged USDA prime beef, I'm partial to Allen Brothers. Also, they have some awesome Black Tiger shrimp. For most other seafood, I use SizzleFish.
We ordered a mail order Turducken one year for Christmas dinner. The price was high and the taste was downright terrible. For the most part I depend on the meat department at the Patrick Space Force Base Commissary for our 'need(s) for meat. They cut it just the way I ask, trim any excess fat and for some odd and unexplained reason wrap the fat and give it to us in a separate package. We take it home and after discarding the fat, we cook and eat the meat, all graded USDA Choice or Select! Reasonably priced and it always tastes great.