Torklift Tiedowns Original Steel or Talon Aluminum

I'm looking at the Talons myself. My concern is metal fatigue, since aluminum has only a certain number of bends in it before it shears... but aluminum framed bicycles have the same problem, and those are well engineered enough to not have any freak breakages, so I think it would be a decent alternative. Weight doesn't really matter to me compared to corrosion resistance.