Most of the benefit in LED lighting right now is longevity and cost savings.
When LEDs first started to be measured for light intensity, they used the (if I spell this right) candelas as the unit of measure. If I remember right, this is a unit like micrometers is to inches. Its tiny in comparison. Since then they have been working hard at trying to get LEDs brighter.
Now LEDs are starting to appear on the market as replacements for incandescent bulbs. But when you read the advertising, its 99% about cost savings. They avoid the comparison of actual light thrown by the bulb. And not all LEDs are manufactured the same. I purchased some ultra high intensity LEDs this year for kicks, and once I got them lit in the dark I decided they had little practical usage for me. On the other hand, I got one of those shaker LED flashlights. It doesn't throw light the way a incandescent bulb does, but I will never have to look for batteries again.
If you have the chance to see what they actually look like at night, you may think their not worth it.
Although some folks arn't looking for spot lights, there, just another cool type of running light. And since the LEDs can come in cool blue, they can look pretty nice to someone looking at you.
If you get em, let us know what you decided.
dw