I'm not a fan of crank stuff and looking at this one I wouldn't buy it. Look at page 8 of the manual, the crank charges an NiMH pack. So first issue to me is replacement packs, you have to buy or rebuild a new pack when this one is dead which costs more than standard batteries like AA. An NiMH battery needs a smart charger to give it a long lifespan and you can't really do that with a crank as you need constant power into the charge circuit. Also NiMH have a high rate of self discharge and shouldn't be stored discharged or be drained too low to prevent cell reversal. So you still need to pull it out and crank up a maintenance charge every so often. Even then without a good smart charger your going to need a new pack in a few short years.
This does run from AA's also so buy a good charger and some of the new low self discharge batteries like Sanyo Eneloop then just pup them in the charger every so often whenever your checking and rotating the rest of your gear like water or medication. Then just buy a radio without the crank.