Where we hunt if you draw an any deer tag it is good for both whitetail and muleys. I like to have cameras out for whitetail so I can spend more actual scouting time scouting muleys. I almost always hunt muleys with archery but I like to keep my options open.
Sometimes if you want to hunt with a rifle you might end up drawing a whitetail tag as a second choice so its nice to have some knowledge of what is out there for whitetails.