For those who may be interested.

I am at 173k on my 2012 Tacoma.

I bought this truck new in Vancouver, WA in July of 2012.

https://imgur.com/lR72Lim

https://imgur.com/xe40JCS

In 2013 I moved back to my home state of Arizona.

Off-road conditions were entirely different between the two States.

My tire experience is noted. ALL tires were sized 255 85 16

I bought my tires from Discount Tire and balanced and rotated them every 5k.

BFG KM 2 MT, 54k miles I put these on when I bought the truck. Excellent tires and performed great in all off-road conditions.
They gave me the most miles on my truck.

Toyo Open Country MT, 45K miles, A heavier tire, and gave me less gas mileage on the highway. Performed great off-road but were more difficult to keep aligned.

Cooper ST Maxx, AT 48K miles, A softer tire that gave me 48K.
Performed as well as the MT's off-road but wore out quickly in off-road driving because of the dry rocky road conditions. I drove them down to pretty much no tread.

BFG KM3, 25K miles, and on their last rotation. They are worn out and I am starting to look to replace them in a few more hundred miles. Disappointed in these tires as they are soft and wore out quickly in this arid rocky terrain.

I am seriously looking at the Toyo M 55's as my next tire and would appreciate hearing about anyone's experience with them. They are $90.00 more per tire.

Are they worth the extra cost? I want something that will be able to handle the dry rock experience here in AZ.