I saw them about 10 years old and I thought the performance is great.
I just don't like them enough anymore to ever justify the expense of a Metallica ticket. The cost has a tendency to be out of this world for me a 'pricey' show is around $40 and the $50+ ticket expenditures are only for my absolute favorite favorite bands and/or bands I'm very desperate to see and have only a limited opportunity to do so.
Imagining the sheer hype of being at a Metallica concert where they play Kill 'Em All is pretty awesome. But really you might have a just as fantastic, if not more so, night at a $15 show in a small club.