55k miles - very rusted looking oil pan - replace or common & not to worry? on 2005 Chevrolet Monte Carlo

It's not leaking - just looks very rusted compared to everything else under the car. But I would think it must be very thick metal...? Maybe it's not unusual. I thought 3800's were bullet proof. Local shop recommended expensive replacement. Seems way too soon to replace the actual oil pan itself... Thoughts? TY!

Wire brush, sand and paint! Dont replace it!! Now, if you do have to replace it new Dorman pan about 70.00 simple job so labor should not be that much. Got a buddy who is a little handy with a wrench? Dont forget new gasket and oil filter, fill oil filter with oil before installing it.
I still say clean it up and paint cause it aint rusted inside!!!!
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i thimk common for your area. clean good with wire bush in grinder and repaint