Depending on where you live/fly, annual jepp airway manual express subscription may not be that more expensive than buying NOS enroute and terminal charts for the whole year. IIRC, when I had the Florida subscripton, it came within 30 bucks of NOS charts for the whole year. Not to mention that they send revisions to your door steps. And if you have individual approach plate damaged/destroyed, Jepp is pretty good about sending you replacements.