Cooking a steak, Filet Mignon, Prime Rib, Rib Eye, etc. to Medium, in my opinion, is NOT overcooking it.

And while I do appreciate that when making a good piece of meat one should never cook it to well done, I also believe that people should eat steak the way that they enjoy it.

For me, I enjoy Medium because it still retains it's juices, a pink texture with a slightly bloody core. Some may consider that Medium/Rare.

I don't enjoy RARE where basically the meat is not even cooked. Nor do I enjoy Well done where there is absolutely NO pink or blood.