After reviewing the listings and listening to users - I’ve changed the listings slightly to incorporate delivery charges by default (you can still see the listings without delivery if you like though).

The reason for this is because some companies charge fairly high delivery costs and this is skewing the results.

My advice about the new listings is to compare based on cost per gigabyte DELIVERED if you are just buying one item - ie. a flash card, but if you’re buying quite a few items compare based on cost per gigabyte WITHOUT delivery.

Hope that makes sense to people - and it improves the usefulness of the listings.