FH,
Searing to keep the juices in is IMO the biggest meat cooking "fib" out there. I had this verified by a guy that studied meat science at Fresno State and was on the Meat Judging Team. The high heat destroys ZCells allowing juices to escape. You also create a dry spot. The juices in the meat will tend to the dry spot and it creates a moisture loss area.
At Rare, you are done so fast you won't notice. At Medium or medium well, it will often be dry at high quick heats.
I do several things to make meat Juicy. One, I don't cook the juices out of the meat. At low heat, you will see what looks like beads of sweat on the meat surface. That means it isn't evaporating off.
You can also make sure there is a moisture barrier against the meat. Oil in the pan, pour Au juice or stock on the meat as cooking, Wrapping meat and allowing proper resting before slicing. All of them are good techniques.
I haven't been mailing meat. Freight is more than the meat in many cases. It is admittedly my mental block. I know I wouldn't pay that. I need to realize when someone buys steaks for a dinner party in New York, part of the value is bragging to friends about steaks they purchased from an Oregon Ranch with pristine pastures ;-}