Here's the deal with the Limited Lifetime Warranty. Strings/cables and finish are not covered as these do wear out anyway. The rest of the bow is covered with full warranty up to ten years. After that the bow ( or parts thereof) is covered for the life of the original owner at a cost of 50% of the retail price at the time of replacement.
This can be misleading though. The way bows are evolving these days parts for your bow may only be available for a few years or less. Limbs on your Moab would be a good example. Those limbs were 1 7/8" wide and available in 2008 and 2009. In 2010 Martin changed to a narrower limb (1 1/2") which required narrower roto-cups. These would fit your riser so in these cases Martin was not stocking spare parts in the older configuration. If a problem occured with the limbs they replaced the limbs, roto-cups and axles which fit your riser. So in essense they end up updating from 2009 to 2011 with all 2011 parts.
What happens if they redesign the whole works? Maybe they'd replace the whole bow or maybe give you partial credit toward a new one. Your guess is as good as mine, but as the other guys have said, you cross that bridge when and if you come to it.
If You're Not Living on the Edge You're Taking Up Too Much Space
Martin/Rytera Staff Shooter
PSAA Life member, UBP Life member
PADI AOW Diver