Defense trumps offense in GURPS DF?: Dungeon Fantastic (opens in new tab)

My players have some recently discovered the whole "amulets" section of the magic item list. So, naturally, with a big windfall, there are a lot of Ironskin Amulets getting ordered. They'll take 288 days to arrive, but it's +3 DR for, almost everyone. Oh, and at least one is looking at Defending We