The two bulb types which I want and which aren't quite ready for prime time yet: 50W halogen MR-16 floods and 30+W candle bulbs.

There's a huge amount of action in the LED bulb industry on the MR-16 front, but only the very, very expensive ones are truly "equivalent" to a halogen MR-16 at 50W. There's surprisingly little action on the candle-bulb front, which is what you need for most ceiling fans. I bought some Philips LED candle bulbs ("180 lumens") and they're just not bright enough as well as having an odd pink color.

Meanwhile, yes it's pricey to buy something like the CR6 or LR6, but for us, they were the solution to an ugly problem. Our second story ceiling is also the floor of the attic, with a foot of blown fiberglass insulation. The fixtures have auto-shut-off when they get hot. Incandescent bulbs would never stay on for more than a minute. CFL bulbs take too long to warm up. LED bulbs? Perfect.