Problem with the lust for independence is that it's based on misconceptions, emotions and historical 'spin' and also on people with motives that are not pure and simply about the desire for political self determination. A lot of those behind the independence movement in Scotland tend to wave the Irish tricolour rather than the Saltire and are either Irish by birth or ancestry and their desire to push independence is not to benefit Scotland but to take a kick at England to feed their ingrained hatred of what they perceive as their former masters.
You have the romance of Bonnie Prince Charlie but, if you set aside the emotions and look at the cold hard facts, Charlie didn't want Scottish independence. He wanted the Throne of Great Britain and Ireland and used the Scots sense of being wronged to use them for his own ends. The reality is that fewer Scots stood with Charlie than with the government forces and there were more lowlanders than Highlanders in his ranks and a lot of his force was made up of English, French, Spanish and Irish, all of whom of course had their own political desires, behind their support. Independence and political upheaval is never, ever for the benefit of the ordinary man in the street although it's inevitably that self same little man who suffers for the political change.
I think they are all fooling themselves if they think this little nation of less than six million souls is better off without being attached to the other fifty five or so million souls south of the wall. I wonder though, if it came to the crunch and a decision had to be made that meant no going back should it all turn to crap, just how many Scots will be prepared to take the leap. Traditionally we are known as a 'Canny' and cautious lot so I would be surprised if Scotland didn't err on the side of caution.