Those Beach Boys and Rolling Stones weren’t the only septuagenarian rockers celebrating 50th (give or take) Anniversaries over the past twelve-or-so months, absolutely not. Just about each and every singer/songwriter/guitarist still standing – well, those with lucratively deep catalogues ripe and ready for recycling, that is – had multiple multi-media packages (and, in the Stones’ case, four-figure-plus concert tickets) competing for what remained of a loyal boomer’s nest egg throughout 2012.