I recently ordered a new Bosch O2 sensor from Rock...

I recently ordered a new Bosch O2 sensor from Rock Auto. First time using this site. The Auto Zone and O Reilly auto parts stores in my town were both charging $100 dollars more for the same part than Rock Auto s price. I only had to wait 2 days for it to arrive and it came all the way from California to my house in NC! Unless I need the part today, I will always use Rock Auto.