Yes, I should have made the distinction between overweight and heavy. I tend to bring "overweight" (70+ lb) luggage with me. Didn't even think about the 51-70 lbs still being allowed.
I guess I will bring 2 bags, each weighing 70lbs. If I read it correctly, I cannot bring a 3rd bag, regardless of the weight or if I am willing to pay. Same goes with boxes, NO boxes allowed period.