I don't know why you wouldn't do them. They are one of the most basic, easiest things to do.
Around here I always see those 59.95 per wheel though.
I'm welling to bet thats for pads only.
@Iamthewalrus
AC Delco Calipers will run between 35-50 per side.
Bosch or Wagner pads will be 15-25 for both sides
Rotors of any brand are 45-60 per side
Drum brake hardware is like 5 bux for the bag and does both rear sides
Brake shoes really vary in price but a decent set can be had for like 30 bux and that does both rear sides.
You may or may not need rear drums and those like 75 per side.
A few other things to consider:
Condition of rear brake cylinders.
Condition of rubber lines.
Condition of metal lines.
Age/performance of master cylinder
Since you are opening up the system to do the front calipers I would suggest getting new rubber lines and new wheel cylinders as well. I would also suggest doing it yourself because a brake overhaul will not be cheap from a shop. If you were just changing pads, rotors and shoes then a visual inspection of all the other components would be ok.
Oh, you will also need new fluid and either a second person to help you bleed the brakes or some bleeding device.