There are other ways to preserve your car and get it looking good other than traditional metal replacement.
Using traditional methods you are putting your car back to what failed to begin with. Either way if you don't maintain it and it is used as before it will fail again.
There is a difference between slapping on some bondo vs doing a proper fiberglass repair . There is also a difference in how a metal replacement job is done. Naturally there are areas that a metal replacement may be necessary but not too often .
Using traditional methods you are putting your car back to what failed to begin with. Either way if you don't maintain it and it is used as before it will fail again.
There is a difference between slapping on some bondo vs doing a proper fiberglass repair . There is also a difference in how a metal replacement job is done. Naturally there are areas that a metal replacement may be necessary but not too often .