I think that is a fair opinion DannyL. However I don't believe Maglites are made to be used in wet environments where they would corrode, its possible the items your describing were not being stored properly. (of course in Alaska the humidity is high). But I used Maglites in the south Pacific in the 90's and growing up in the PNW and don't recall tremendous corrosion with proper care and good batteries changed often.

I expect my $100 Surefire would perform the same as my $10 Maglite in a corrosive environment. Maybe the Surefire has more O-rings and weather resistance but I couldn't tell you. Same as my Inovas. When I am in wet situations I will use my water proof Pelican lights.

Headlamps. I prefer headlamps. I have used my Black Diamonds, Tikka (etal.) and e+lite all in downpour conditions and worked perfectly multiple times. So I am with you on that point as well.