The Shoei shields do seem expensive, but honestly, I think they are worth it. They seem to last longer, scratch less, just higher quality.
I balked at first, now I'm sold.
The RF1100 is comfortable, the insides come out and go back together so easily - and the shield change, holy crap, it's so simple even my wife could do it! No tools needed!
With the Shoei being discounted so much everywhere, it's worth considering. If your head is that other shape, shop for an Arai.
Those are the two best IMO and anything else is second rate.
Not that there is anything wrong with that - they just always seem to be compared to the Shoei/Arai, "as good as" or "almost as good as" - why not buy the real deal?