Would be good to get some feedback as to whether our CBF members would pay £50 for the guard?
In all honesty, I would probably fork out the cash to get one, mainly cause a bad hit to the head is pretty much the only really serious, possibly permanent injury you can get in cricket. Even a broken rib will be good as new in a month or so. Also, getting hit in the head is probably going to happen to everyone at some point or another. That said, in my opinion, this almost feels like car manufacturers charging £5k for airbags even though it only costs them a fraction of that to make them; most people who can afford it will pay cause they don't want to die, but it seems wrong to charge too much just because you have people's safety in your hands.
On the other hand, if they are using some sort of super complex manufacturing process and exotic materials, and it costs close to £50 to manufacture, then I will happily retract the above.
tl;dr It seems too expensive. But I'd still pay, because safety.