Sake. It's not aimed at "the average fan" to any real degree.
Supply & demand. It's one of these "once in a lifetime" sort of experiences that they've put together because they know there are enough corporate sorts out there who will pay for it, that or individuals looking for something for a...
More like: you have to work for a company that will pay, either for a charity event, or for a corporate bonding thing. Pretty obvious who this is aimed at.
Can't see the problem myself. They're not going to offer it for a fiver, are they? It's one of those "experiences" that's meant to be a little bit exclusive.
The places will get snapped up by corporate types, and the club will benefit by thousands of pounds for a couple of days' use of the...