Whangee-handled Brigg: Why so dear?

I've been looking at Brigg umbrellas lately, and I've taken a fancy to the whangee handle. But at classicluggage.com, the whangee is significantly more expensive than all the woods; even the silver-capped Prince of Wales model is less costly. My question is why? Is bending the whangee that much of a chore? It doesn't seem like the material itself should be pricey.

I also notice that the whangee isn't even listed on the Brigg Web site, except under the "special order" category. Surely it's available in their store?

Anyone with thoughts, specific or general?

The sterling is sterling -- solid sterling and hallmarked. Seems fine so far. I like it more than the gold plate on my Malacca handle. Both are nice though.