Yes, I run numbers etc but I was thinking if I buy this equipment this year - does that in return increase the cost of doing business since equipment is more money? And then do I need to figure that one piece of equipment everytime we do something with it or for it. Say we have 2 older z's running and one new. Does that new cost more NOW to run? Then what I top off all the tanks with gas - kinda hard to say if we put a gallon in or 3 gallons? Where do you start?