ok what are the advantages of upgrading?

i want to keep brake dust to a minimum. dont the good pads have less brake dust or someshit?

stock rotors for my 88 teg are like 40 a piece for the front and like 50 a peice for the rear, hella expensive.

now powerslot/stop whatever is only 60 a piece for the front and 70 for the rears. so for 20$ more for each rotor i get cross drilled instead.

would i be stupid to waste the extra 80 on good ones or what?
i know it keeps temps down, but i read temps wont get hot enuff for it to matter or someshit.

any help is appreciated, just want to make the right decision