YouŽll save tires and brakes (youŽll see how cold they remain) and fuel spent is worth less than 30 USD...
If my understanding is correct, the temperature has stuff all to do with the brake wear on aircraft with carbon brakes. It's related to the number of brake applications, not the braking force, and they are actually more effective at higher temperatures.
I dare say the extra maintenance costs incurred by using max reverse on every landing would very quickly outweigh any savings gained by going easy on the brakes.