If I was going to spend that much I would go with the Craycort cast iron. Am I wrong?
There is no wrong. What ever you like is right.
I like a single piece grate. The GBS two piece grate drives me bonkers.
I would not be able to take the (5 Peice?) Craycort, which I am sure is an otherwise very nice grate.
I like the one piece (hinges ok) Weber nickel plated grates. I've purchased the SS Weber Hinged for durability. Hopefully I will like it as well as the plated.
Honestly, keeping my plated grate well oiled, I don't think there will ever be a corrosion issue.
I did buy extra SS grates for some grill I'm giving away. I can't presume those folks will take care of them as I do.