Re: £899 - Ouch
For me it is the 1%.
Although my priorities would be someone's 'meh, so what' list.
The camera array, the IP6X-rated phone:
1. I have young kids and lugging MILC (Sony a6000) every time we go out just sucks.
2. Cycling (not commuting) in the rain and generally perspiring while cycling precludes me from having non-IP6X-rated phone.
Of course YMMV.
Not going to upgrade in 12-18 months so this is a long-term investment in a phone which will still be relevant (for me) in 3 years time.