Like e57 said, things can get pricey quick, but smart business and homewoners realize the long term savings. Just priced out a job last night for a residential kitchen. Looking at another LED retrofit for mr-16's.
questions, PM me. I am a ck certified installer/startup tech.
Hopefully the technology will get cheaper but I agree LED is probably the wave of the future. There is no real reason why LEDs can't be cheaper than incandecents. It is just the ramp up of the manufacturing infrastructure that drives price right now.