I understand artists seeing this issue differently, especially those, who have their own signature models.
But as you already wrote, us everyday guys can get those lower-price alternative modes, and do some minor overhaus, when we feel like it.
Regarding putting in those DiMarzios - My first electric was a cheap Les Paul copy, and back then, I got Seymor Duncan humbuckers, and just took the original piockups out, cut the wires, and twirled the new wire aroiund the rests of the old wirings, for lack of a soldering iron
That new sound was like the sky having cleared, and the god of thunder sending his grace upon my teenage head