Chrysler Repair: Corroded freeze plugs and head gasket: 2.5 V-6, head gasket replacement, head gasket failure

Question
I have a 2000 Sebring with just 76,000 miles on it and it recently developed a slow coolant leak, forcing me to refill the resevoir every few days.  My mechanic put it on the lift and found the 3 freeze plugs on the back/bottom were pretty corroded, and the same same thing is happening on the head gasket.  The front freeze plugs are not too bad.  Is this normal in a 7 year old car?  What could have caused this?  Should I pay 1500-2000 to fix everything or just ~ 300 for the feeze plugs and then trade in the car and let it be someone else's problem?

Answer
Hi Eric,
While head gasket failure has been reported to me by other questioners, I have yet to learn of freeze plug corrosion. Do you live in a climate where salt is used for ice control?
I don't see a tie between the head gasket and freeze plugs corrosion. Are you certain that one of the two head gaskets is leaking: do you get white smoke out the exhaust, cloudy oil, early bubbling sound in the cooling system, exhaust gas detected in the cooling system, external coolant leak from the seam between block and the head, and do you know which head is leaking? If the leaks are clearly confined to the freeze plugs why not just replace those and maybe see how much coolant you are then leaking? Maybe if it is slight you could try retorqueing the head bolts and/or using a coolant system sealer such as Bar's Leak. That might keep you rolling without the high cost of a head gasket replacement. They are separate jobs so no need to do them both at once.
Roland