An article in the Scotsman says it all –

The worry is that the tranquillity in the heart of the city that makes Princes St Gardens a loved public space could be sacrificed to feed ambitions to boost Edinburgh amongst “world cities”. If four million visitors a year is insufficient to sate the appetite, what would? Five million? Six million? Nobody has asked the citizens. The gardens should not be the locus for “events” 365 days a year.

Read the full article: Ross Band Stand