Properly timed, comes with experience,and cooked meat, does not need more that a 30 minute Countertop Rest. A Perfectly cooked Pork Butt, probe tender, bone nearly falling out, is NOT going to get even Better or more Perfect, sitting in a cooler 1, 2, 5 hours.
Coolers are a benefit when, for whatever reason, your meat is done early or you need to take you meat on the Road.
There really isn't a reason to spend big bucks on a cooler you should or will rarely use. Not to mention, a Cutting Board topped Cooler, will be too low to work up the meat placed on the ground, your Dog will appreciate it, and too High if the coolers on the Counter...Just another perspective....Good Luck....JJ