to A/C or not to A/C?

This isnt really technical, but more of me wanting some opinions. My car is a factory A/C car and the previous owner removed all of the A/C components. The good news is that he kept all of the stuff and its now sitting in my trunk and now i wanna figure out if i should put it all back on the car.

Does anyone know how much power is robbed by having the A/C hooked up?