The cost isn’t the point. Went to Whistler again last autumn and decided the Switchblade was useless so bought a full face.
661 helmet cost about £50 and was stunningly good – light fits like a glove, not too hot even in the warm weather of Canada.
The guys at Ticket2RideBC thought it was impressive and one of them had the carbon version of the same helmet – compared to other (more expensive) full face they were using it was much lighter and whilst the carbon one was very light there wasn’t that much difference in it – ceratinly not worth the £100 difference unless you are a serrious downhill racer.
I rode every day for two weeks and it didn’t get uncomfortable once – and I don’t normally like full face.
On the wet days I wore a set fo goggles which fitted easily in the face hole and on dry I wore normal sunglasses and they fitted OK with the helmet as well.
Can’t praise it highly enough!
Oh and I headbutted a few trees/rocks/etc. in the course of the two weeks and I was fine and carried on riding (the switchblade would have broken and embedded sharp plastic chin guard in my face!)