Yes, parts are not cheap. They are not cheap for any car. Let's keep things in perspective, however. Compare the following, if you will:
Let's take the humble, pedestrian, "they made a million of them", plain-vanilla, boring Toyota Camry. Let's consider a year some time back, where you will start to need some parts, like 2005? Sorry if I insulted anyone here, but here in Michigan these are as common as anywhere else, driven merely as transportation appliances.
Front Brake Rotor, MSRP: $102.00
Rear Quarter Panel, MSRP $814.00
Starter Motor for 3.3L, MSRP: $307.00
Alternator, 3.3L, MSRP: $427.00
Fuel Pump, MSRP: $333.00
5-speed Transaxle, MSRP: $3,274.00
Now SOME of those parts exceed the cost of parts for our cars, others come darn close, and others might be a bit less costly. Keep in mind the last of our cars is 40 years old, and they only made less than 50,000 of them. Toyota production? In that 2005 model year, USA alone, they sold over 430,000 units.
I think if you did a similar comparisoin you might find that other car parts are similarly as expensive.
That being said, I think the cost of the grill star and barrel, and the grill surround are as about ridiculous as the crankshaft for a 300 SL....