Looking at the list of Bitcoin merchants (https://en.bitcoin.it/wiki/Trade), I can't help but wonder why the more basic human needs such as energy and food aren't available yet via Bitcoins.

Bitspend (https://bitspend.net/) is making a nice effort making all products available for sale on Internet also available via Bitcoins. Are there any similar initiatives for bills and groceries, especially in Europe? Would an intermediate such as Bitspend be favoured over merchants accepting it directly?