In their book Going South: Why Britain will have a Third World Economy by 2014, Larry Elliott and Dan Atkinson claim the UK needs to make a fundamental choice: Should it move in the direction of a Scandinavian welfare state (similar to the Common Weal ideas currently being discussed in Scotland), or should it become a low-tax state based on free trade (called "Freeport Ho!" and "Freeport Britain" in their book)?
They don't really discuss Scottish independence in their book, and they seem to think that the UK must make the choice as a whole.
However, it appears to me that Scotland and London have already chosen. Scotland wants to go down the Common Weal path (and what we're really discussing in the independence referendum campaign is whether we can convince the rUK to go down that road with us, or whether we should do so alone), and Greater London has practically decided to become a global free port (which is why so many people in the South-East want to leave the EU, dismantle the NHS, and all that).
It's probably the case that a majority of people in Wales and Northern England actually agree more with Scotland than with London, but given that the Tories are essentially a Southern English party (see the map above), and that Labour are forever chasing the swing voters in Southern England, they have unfortunately handed over the power to make this decision to London.
Only in Scotland have we got a chance to choose a different route, which is why we have to vote Yes now, before the process of becoming Freeport Ho! makes it utterly impossible for Scotland to make a different choice.