Upgrading brake pads on Titan Discs

[Ford truck guy]

I was lucky enough to be able to add the Titan Disc brake system to my RW last year and it's unbelievable!!

Now for the question . . . On here and other forums , folks talk about upgrading the stock brake pads to NAPA's best, or equivalent....

With the trailer at MORRyde next week , that would be a perfect time for me to ADD the newer pads..

IS IT WORTH IT ?? The trailer stops like there is no tomorrow , but not fully understanding why folks swap them out ? I am the type that likes to stock at home a spare of a lot or wear items... So I could use the stock pads as spares in a pinch ? ?? Or do I spend the money on beer ?