Night Slippers with LED Lights

Now here's a concept that I really like -- light slippers. These creative night slippers allow you to easily move around dark areas without turning on any lights. Two powerful LED lights are placed inside the front of the slippers, illuminating as far as 20-25 feet ahead. Built-in light sensors do not allow the lights to turn on if there is sufficient light in the area. Built-in weight sensors do not allow the lights to turn on unless you are standing on them, and they also automatically turn off when you remove the slippers. Two, easily replaceable lithium batteries power the lights. I've seen these being sold for as much as $40 on Amazon and other websites. You can find these on eBay for half the price with free shipping! Would you buy these LED light slippers?