Just when you think that Amazon couldn't compete on any more fronts...

[Rooftop]

... webstore.amazon.co.uk

£7/month + transaction fees for a pretty impressive solution. 

[Chunkford]

oooo that's interesting.

But it's £6.99 + marketplace fee's + Fulliment fee's + 0.7% of transaction value + payment processing fee's
If you just wanted the store then it's £16.99 + 2% of transaction value + payment processing fee's - Similar setup to Shopify + paypal