Those looking for very bright LEDs, why not DIY?
It's about $30 per 100w module (LED, driver, lens, and heatsink). Might be a little much for most indoor applications.
From what I've read, the issue with most LED lightbulbs is lack of heat dissipation. While they're very efficient, they still generate a lot of waste heat when they're outputting a lot of light. Bulbs that don't have good enough heatsinks cook the LEDs.