To some extent that's probably true, sodium ion is going to change the market. I'm guessing it will be a lot more than 25% price difference once it catches up on energy density.

We have occasional blackouts, and I use mine when setting up booths at events not directly near an outlet. Not sure I've ever used it camping though, anything I would need or want I can just charge from a Ryobi battery with the power source adapter thingy.