Is it better to get my rotors machined or replaced?

That sounds insanely cheap for brand new rotors. $150 all in? Double check to make sure that $90 + $60 isn't the price per rotor.

If there's actually only a $30 difference, then go for the new rotors. Every time you machine rotors you thin them out, and thinner rotors take less time to warp all over again. New rotors of OEM quality will last you much longer than your current worn out ones after machining.

If it turns out that they're going to replace your factory rotors with crappy off-brand ones or that it's actually $150 per rotor, just get your rotors machined for $120. You can generally machine rotors 2 or 3 times before they get too thin to hold their shape.

it depends on how much material will be left after machining. that is the legal idea here. there is a spec stamped into the drums and rotors that we have to look at and make sure that we dont exceed that. you as the owner can replace them prior to that. i have yet to see a shop that would charge that much for machining. shop around.

I would recommend replacing them. Most rotors come from the factory close the the minimum thickness and turning them will make them to thin.

First time, machine, second time, replace.