I think that items listed from Amazon which don't qualify for free delivery (i.e. anything under £14.96) should have to be listed containing the price for Amazon Prime members (i.e. without postage) AND the price for regular shoppers (i.e. with postage).
Plenty of other sites have to be listed as "delivered" prices, so why not Amazon? For instance, the Robbie Williams CD that was submitted tonight - it's not accurate to say you can buy this CD for £1.96, because there is £1.45 postage to pay if you don't use Amazon Prime. It's not a bargain if you have to spend another £13 to get it for that price.
Fair enough some people want 'filler' items, but I think it's misleading to post deals as that. If you're posting a deal about ONE item, the details should be about ONE item - not as a supplementary or additional item.