Again, we are talking about indicator LEDs, not lighting LEDs. Indicator LEDs are seldom even grouped into warm, natural, and cool — you most often just get “white”, which is typically a coolish white. If they offer a warm white, it may be anywhere from warmish to nearly yellow, and they may (or may not) refer to the other one as “cool” to differentiate it.
With that said, it’s odd that you have found cool white LED lighting to be more expensive. Historically, it was cheaper, but nowadays seems to have no impact. A cursory look on the Home Depot website shows no price difference whatsoever between, for example, the 3000K, 4000K, 5000K, and 6500K versions of Philips’s 4-ft LED replacements.
FYIW, I really dislike Philips’s color temp verbiage, calling 3000K “bright white”, 4000K “cool white”, and 5000K “daylight”, and 6500K “daylight deluxe”. The usage I prefer would call up to 3000K “warm white”, 4000K “natural white”, 5000K-6500K “daylight”*, and perhaps 7000K+ “cool white”. It makes NO sense for “cool white” to be
warmer than “daylight”!!!
I guess they carried over the definitions from their tungsten products, where “cool” tungsten was still nowhere distantly as cool as actual daylight.
*In the publishing world, “D65” (spectrally accurate 6500K) lamps, mostly fluorescent historically, are used for color-accurate proofing of prints. Because they have high spectral accuracy, they don’t appear as cool to the eye as “cool white” regular fluorescent tubes or actual sunlight.