Goal Zero Sherpa 100 and Nomad 20 system

I just received a Goal Zero Sherpa 100/Nomad 20 battery backup and solar panel system for review and provide a brief comparison of its features against the Adventure 10+/Nomad 7 system which I own. The Sherp100 has 10x the power of the adventure 10+ and enough juice to support power hungry users in the backcountry. I think it will be most appreciated by photographers and video shoots where worries about running out of battery can be decreased. However, the system comes at a cost, in literal $$ amounts and also a weight penalty. At 2.1 kg this system is pretty heavy and not the kind of thing backpackers and ultra-light campers will want to lug around. (Then again, they probably don't usually pack DSLRs with 1 kg lenses and 3 lb tripods either). Well suited to extended trippers and canoe campers who are willing to pack a bit extra weight for convenience and security. Bottom line, if your electronic needs are light and you are just looking for a few AA battery recharges and/or USB charging (cell phone or sat. phone) then you can get away with the Adventure 10+ and Nomad-7 (Its 1/4 the cost and 1/4 the weight). If you are packing a go-pro camera beyond 1 week plus secondary camera, the Sherpa 100 might be the way to go. Forgoe the solar panel for shorter trips and bring it along for the really long trips.