Originally Posted by Kinley
....the fact that they never run out if sun.
Hmmm, kind of a trick statement. They do "run out of sun". If you are on a trip during the fall or spring you have reduced daylight hours. If you are in technical waters where having the system set up on the raft is not practical. If you have rain, clouds or are obscured by the rim of a canyon at a campsite.
I'm just playing devils advocate here. I like having the full capacity with me without relying on being a slave to the sun - so to speak.
As far as weight and size is considered, my system winds up being one of the smaller things I'm taking with me down the river - it's in the same size case as my family toiletries are. Granted - it's quite a bit heavier