While not illegal what you are doing certainly brushes up against some ethical boundaries. Frankly I am surprised, Quake. You seem from your postings to be an honorable man, active in Church and a role model to the youths in your area. You also own a business. How would you feel if this happened to you and your product was listed at less than your cost?
Is this your way of sticking it to corporate america because in your opinion Grainger can afford to lose some dough?
Just my 2 cents. Flame suit activated.