I'll provide a dissenting opinion, I guess. (Although the reality is that I'm probably analyzing this question way more seriously than the OP intended.)
No, I wouldn't start calling your wife a flashaholic just yet. This thing looks like an interesting gadget, but it's basically a novelty item. It's "neat," but I'd no sooner call someone who bought these a flashaholic than I would someone who buys a 10-pack of cheap pot-metal 3xAAA flashlights at the hardware store and stows them in every conceivable corner of the house in case of a power outage.
...yeah, I definitely over-analyzed the daylights out of that.