I'm a bit puzzled about all this. Anybody who wanted to travel abroad this season would already have a passport if they followed the standard advice from the passport office. As the passport is far more useful than the ID card (covering all countries, especially the US) why would anybody in the Manchester or Liverpool area spend another £30 for an ID card?
The only thing lacking on the passport is the holders address - but then as nobody can yet verify the address on an ID card, the passport is not at a great disadvantage. Indeed, it is the ID card holders responsibility to keep the address on the card correct, but if it cannot be verified (especially outside the EU), how can it be trusted by a 3rd party.