Way back wehn I did my switch toe ceramic pads, the Advance Wearever rotors wear really thin, even thinner than the Azone cheapies. Advance also had Raybestos PG plus rotors, over twice the cost and excellent thickness.
When I got my stuff, I was told ceramic pads don't transfer heat to the caliper/suspension as semi-metallics do and a thicker, drilled or slotted rotor might be needed to avoid warpage (on such a large car)
Higheremotions, have them pull one of each for you, you'll see the difference quite easily. The cheapies are like $25 each and the PG'* are Like $55....
I went with the PG'*
98 SSEi 111,222 miles.
Intense PCM, LS6 Valve springs, PEMS, FWI. Hawk Street Pads.