We work to LOD 300, documenting the actual size and shape of the equipement, but without the bells and whistles manufacturers have.
Does a luminaire really need to have the diffusers shown and textured, or is a rectangle the size and shape of the luminaire adequate?
Also by using our own families, our schedules are filled in as we go, no need for much end user input, just size shape and load, also, our shared parameters are already linked to pre made schedules, and until there is a universal standard shared parameter file we need to make sure our families are usable with our schedules.
Adding all the necessary information each time we use a manufacturers familiy can get very tedious very quickly.
As the creator, if you could create different family versions for each LOD, that would be amazing, so we as designers can use what we need, and if the architect wants to create a decent render, he can copy monitor our stuff, but substitute a higher LOD version for his renders.