I have to agee that it is possible to see similarities between the 2000 - 2012 POG chart and the "typical" bubble. Trouble is charts are so easy distorted by the scales and time range you chose - so it's not certain.
I don't think we've yet seen widespread "Public enthusiam, greed & delusion" annotated on the bubble chart - so I suspect it's actually still well before the top. But on the other hand I wouldn't bet more on that than I'm prepared to lose!
For sure we'll find out as time goes by.
(I don't have any physical but do have shares in a producer and a hopeful.)