I agree except for a few: CFLs (depending on the size) put off a lot less heat than incandescents and not that much more than LEDs. My CFLs have a 5 yr. warranty, so that means your LEDs have a 50 yr. lifespan? I doubt that. My CFLs put out the equivalent of a 60W incandescent at only 9 waats. That's really close to an LED. When they expire, I will replace them with LEDs.
Btw, one of the first things I did after buying this home (about 4 yrs. ago) was to replace 75 (had no idea there were this many) incandescents with CFLs...
Here is where it gets confusing. I spent a few months on a lighting proposal as part of an energy efficiency committee at work. If you look at a CFL in manufacturers claims, they look pretty good... However, in real life commercial application it is another story. The CFL bulbs are rated constant on bare bulb at a steady cool temp, with some manufacturer rounding up. Put them in a recessed fixture (and not all are recommended for recessed fixtures) for an office environment, and it is a different story. About half of the light output is lost in fixture. Heat is trapped in fixture, leading to higher power consumption and much shorter lifespan. You want the holes in the ceilling sealed to keep from using HVAC to heat and cool the airspace above the ceiling, causing more thermal problems in the cans. People turn lights on and off. CFL's also tend to completely fail, meaning you have to move up your replacement schedule to account for first failures. In recessed fixtures in an office situation, CFL's need to be replaced regularly (although they are an improvement over incandescents).
However, the CREE retrofits are engineered and rated for the application. While the rated lifespan of a CFL doesn't look too bad on paper for ideal circumstances, the LED fixtures easily last ten times as long in-application. And since they tend to degrade, rather than completely burn out, you can stretch the replacement schedule even longer. The LED retrofit offers much better light output and lifespan in application. The trim ring seals off the ceiling, making it unnessary to replace the cans with sealed backs. Switching on an off does not degrade LED's. And CREE tends to rate their bulbs conservatively (unlike most manufacturers). DOE, Walmart, DOD and some other large organizations that actually have the time, buying power, and capablilties to fully evaluate the options have been going with CREE LED fixtures.
But, if you just look at the numbers used in marketing, it is hard to tell that. You can look at residential consumer warranty rating where they will make you fill out paperwork while being almost as expensive with shipping as a new bulb to have it replaced under warranty and be mislead to think it will last that long in application (like "lifetime warranty" brake pads at Midas). It is like comparing Aiwa boombox advertised wattage to NAD amplifier rated wattage-- in real life the NAD actually measures dramatically higher, but the boombox advertises itself much higher. It really isn't easy for a consumer to figure it out (it took me a while on the committee). You see numbers and think you are comparing apples to apples, but you aren't. And many no-name LED manufacturers also have misleading marketing. Some even use CREE diodes in their fixturers and you would think they would operate comparably, but the electronics and thermal management are not up to par with the CREE fixtures... That's why I recommend people who don't have aquisition departments and access to independant testing to look at Energy Star and some of the other DOE programs and think about the application.