Joe, I think you're missing the key points that 1/ the Glasgow area has a higher holidaying population than Edinburgh so routes such as Virgin to Orlando and Emirates to Dubai (as well as the European bucket and spade destinations) will always work better from GLA than EDI and 2/ the Glasgow area has a much higher ethnic population than Edinburgh so Emirates to Asia (via Dubai) will always work better from GLA and 3/ Edinburgh is seen as an inbound tourist destination (it is the Scottish capital) so routes attracting inbound as well as outbound traffic (European cities, CO New York service etc) will work better from EDI than GLA and, finally, 4/ that Edinburgh has become the Scottish business capital so European business routes will work better from EDI. I get the distinct impression that no one contributing to this thread has ever worked in planning or commercial for an actual airline because frankly, if they had, they'd recognise that this is all from page one of "airline planning for dummies".