Considering this is (probably) the last time the prices ain't high. As far as a "bubble" is concerned, yeah, once The Stones, the Dylans, The Whos, Maccas, Liams and Noels, Springsteens, Axls 'n Slashes, Buddy Guys, U2s, Snoop Doggy Dogs etc etc are gone there won't be f**k all to look forward to concert-wise. These are the last days of the legends but there's still some time left. In 10 years time if I am going to a gig it is because I am playing the fiddle.
On a side note I hope the fat c**t that is Markus Larsson is banned from attending Stones shows