It'd be tough to be a hard-core Metallica fan. The 30th Anniversary shows last December, RtL and TBA in Jersey this June, and the 3D show in Vancouver. You'd either have to be loaded or skip some once in a lifetime shows.
6/17 - Meshuggah
6/28 - Iron Maiden - Bergen, Norway
6/29 - Blaze Bayley - Bergen, Norway
7/1 - Iron Maiden - Luxembourg
10/31 - Fleetwood Mac