I am not a fan of cheap tires. The tire is my only contact with the road and I must be able to rely 100% on it. Also, I do not want to experiment and then maybe stand there with a flat tire somewhere in the middle of nowhere. I have had - knock on wood - exactly one flat tire in about 25 years with brand-name tires on cars and motorcycles. And this one flat tire was due to a big fat nail in a street-oriented motorcycle tire. In addition, they should last a long time. What use is it to me if I buy cheap tires but have to change them more often? Since I like to spend a little more money.
But even with brand tires there can be significant price differences. An example. I have driven a long time BFG MTs. Now I am already on the 2nd set on Toyo MTs on the road and am very satisfied with the tire. Regardless, I was able to buy the Toyos so much cheaper that I got 5 tires instead of 4 for about the same amount, pretty much the equivalent of a spare. But I must also say that the Toyos last me a little less than the BFGs.