I generally go see bands only once, since the majority of bands rarely (unfortunately) change their set over the years. Friend-bands not listed, but I've shared gigs with Black Mass Pervertor for a helluva lot of times over the years
3 times Sonata Arctica (2001 [snow castle opening], 2003 [at my hometown!], 2006 [at Tuska Festival])
2 times Black Label Society (2005 [headline gig], 2007 [opening for Ozzy])
2 times Sentenced (2000 [Unto Rock Festival], 2005 [second-last gig])
2 times Deathchain (2007 [Jalometalli Festival] and 2007 [opening for Nile])
2 times Opeth (2006 [Tuska Festival], 2009 [next weekend!])
And I will go see these bands a second time when given a suitable opportunity:
Katatonia
Vader
Rotting Christ
But the list of bands I still need to see is far longer than the list of bands I have seen (70 bands so far)

It sucks living in Finland - all good bands simply skip Finland and go from Sweden to Russia
