Do you plan on doing any off-roading? Dirt, gravel, sand?
If not, stick with street tires... the price pays for itself with the longevity.
A quick Google says a set of Dunlops will cost you around $280, whereas the Pirelli will cost around $200.
You say reviews give Pirellis about half the life span of better tires, sometimes less... but the value isn't there unless they only cost half as much... otherwise it doesn't equal out.
2017 Honda Rebel 500 - Black