Those people are called shopaholics.
A long ton is defined as 2,240 pounds. It doesn't matter what a short ton is.
2200 pounds
1.1 short tons
A tonne (t) or metric ton (U.S.),[1] also referred to as a metric tonne, is a measurement of mass equal to 1,000 kg or 2,204.62262 lb, or approximately the mass of one cubic metre of water