Marc_C wrote:There is no technical reason for this, just a manufacturing choice.
I don't think it's quite that simple. There are significant technical considerations given the small packaging of consumer bulb designs (primarily heat dissipation and broad spread of the light - LED sources are nearly point sources of light). Not to mention the costs of the various colors, manufacturing and packaging that are required to get to a more 'normal' wide distribution in color such as incandescent gives off. So there are big technical impacts due to cost constraints as well for us 'cheap' focused consumers.
A stage light show has few constraints on packaging size nor on initial cost of purchase relative to general consumer products.