I was really looking forward to LED lights, but I got some LED Christmas lights, and those things are NASTY. I had to move them outside, because they made everyone sick when they looked at them.
Practical LED lights have really only been around since 1989 or so. Give it another few years and the kinks will be worked out on the quality of light side.
The quality is improving fast. Interestingly, that's only happening because of massive JAPANESE government support.
I know I hated the Walmart version of Christmas LED lights. I have some Philips that I got for testing that were OK, but I haven't made the conversion to LED christmas lights yet, because I don't really like them.
But the christmas light application is an inexpensive version of what they are working on for real indoor lighting. Most people think it's cool if your christmas lights twinkle :-)