They were expensive pre-covid, but since covid they have become completely unhinged.
https://www.amazon.com/Philips-Hue-Bluetooth-compatible-Assi...
$45 a bulb! That's probably >$2000 to replace a house's worth.
The white, color-temp only ones are about half the price, which is better, but still not cheap:
https://www.amazon.com/Philips-Ambiance-Hue-Equivalent-Assis...
They produce great light at the temperature you want and I’ve yet to have one fail after nearly 10 years using them.
Not cheap, but given I’ve never had to replace one maybe in the end they are