Can the pound shop model work online?

Over the past fortnight, two pound shops have launched ecommerce sites, which makes it some sort of trend in my book. 

The two sites are Poundworld, and hereforapound.com, and all offer broadly products, though the former has a greater volume on offer. 

‘Value’ retailers such as pound shops and fashion brands like Primark have been some of the few success stories during the recession, but will this model work online?