It would be good for new asset field type that is basically a dropdown that also allows free text.
The purpose could be that you may have a long list of predefined objects that you want to use as a starting point, but do not actually want to limit the selection to just the predefined options
As an example, I am trying to create a "model" field for a certain device - there are currently 60 in production with new ones coming out and being retired often. We only use a handful and that's all I want to put in for now, but, I would like anyone here to be able to type a new model without me having to edit the list every time.
…Alternatively, possibly just have predefined options available on a text box - same end result!