I like quality flashlights, which is why I have bought several Surefure & Streamlight products.
I also like to have a bunch of flashlights about, but I can't justify a bulk purchase of the above.
So, I have looked about for a cheap but reliable LED lights. I tried dealextreme.com and had a failure rate of 1/3. Not exactly awe-inspiring. Same thing with many others.
But, those cheesy two for $5 little LED flashlights from Lowes have proved themselves reliable over several months. 10 flashlights, tested by myself and my two toddlers. Over that time, my kiddos have dropped them from toddler height many times, left them on all night long, turned the on/off switch on & off continuously for minutes at a time, etc. None have broken so far.
As to the light output, it is less than my 80 lumen Surefire 6P LED, but sufficient for a "combat" light in my house. Frankly, the Surefires & Streamlights are a bit too bright indoors and reflected light can blind one if not careful.
I would not use one for my combat light out of the house or as a utility light if I expected rain, as the Surefires are better combat lights and they weather-proofing on the 9-LED critters is not as robust as a Surefire or Streamlight.
They are a good, cheap means to have a bunch of reliable LED lights around. They also give plenty of warning if their 3 AAA batteries are going South...and run great on AAA alkalines.