The problem with these long life light bulbs is that their light is very yellowish.
The main way these bulbs achieve their longer life is to operate the filament at a lower temperature.
The addition of krypton gas also increases efficiency (by around 5% for a 100 watt bulb, 10% for a 40 watt bulb), and slightly prolongs lifetime. Xenon gas filling is even better, but more expensive and rarely used. Most normal lightbulbs contain a gas mixture of argon with some nitrogen.
I have tried several different types of these long life bulbs. I have some 100 watt Satco bulbs with a rated lifetime of 2000 hours. They are rated at 1500 lumens, but I suspect their actual light output is less, around 1275. The light they give off is more yellowish than I would like.
My opinion is that if you want long life light bulbs, a more practical option would be to try to find longer life halogen bulbs. Actually, the only thing that halogen does is to increase the lifetime of the filament. Most manufacturers, however, take advantage of this fact and also run the filaments in their halogen bulbs at a higher temperature, meaning the full potential for longer life is not realised.
The wattage and temperature of an incandescent filament is genrally determined by its thickness and length. Thicker filaments will be higher wattage. Longer filaments will decrease wattage and result in a lower temperature, even for the same wattage. The filament inside a typical 60 watt light bulb is double coiled, and would actually be quite long if fully uncoiled, about 6 meters.