Whatever the cost, it sure beats crashing! Just ask Dick Ebersol what he would have paid for a for a nice bath of de-ice fluid. I know we have to be mindful of costs, and $18k seems out of this world, but they kind of have us by the b@lls! I think we paid $2500 the other day at APA.
And you are not just paying for the de-ice fluid that day. The FBO has to buy de-ice trucks and let them sit all spring, summer and fall. You can't just say, "hey, I can order a gallon of de-ice fluid from Sporty's for X amount, therefore, I think you shoud only charge me that amount." It really comes down to risk and service. The FBO took the risk of buying the trucks and stocking the fluid knowing that one day, you would need to be de-iced. Would you want an owner of a plane paying you $500 bucks a day saying, "Shoot $500 a day, that's too much. That's over $180,000 per year! I'll pay you 200 a day! That's over $70,000 per year! And that's plenty!"