Sultans of Swing is interesting as it raises the question: What Dire Straits have made it (so quickly) without that song? who knows, it certainly got them noticed and opened many doors, has it been a noose around Mark's neck for his whole career? who knows, does he even still like the song? It makes me think about when Mike Oldfield released Tubular Bells, it catapulted him from an almost obscure session man to huge fame almost overnight, and being so introverted he hated it, he was getting calls from everyone in the music industry for interviews, live appearances etc and it deeply, and negatively affected him. So, take that album away what did he have? he still had the talent, like Mark without Sultans, but, his appeal would have been less with his 2nd album. I think talent mostly wins in the end, and certainly back in the day it was what appealed to record companies more that the artist, to day it is completely the other way around with the amount of self promotion that is available to anyone.