The UK digital camera market has declined by 29% in 5 years

"Hi-tech smartphones have driven down the sales of digital cameras by 29 per cent in five years, research shows.
Althought the digital camera market was still worth £598 million in 2011, this is down by nearly a third from 2006, when it was worth £843 million.
Eight per cent of UK adults, or three million consumers, now say they are unlikely to replace their camera when it breaks, instead relying on their phones."

Source:  Data from Mintel, reported by The Daily Telegraph, 29th June 2012