I know it came up in a recent thread, but I couldn’t find it, and the search function only returned results from three years ago.
On a mailing list it was recently mentioned that the Better World Club seems to be (might be?) soon offering a bike insurance program? Couldn’t find too many details, but here is their page (proposed pricing looks reasonable):
I wonder what their rates are for bikes above $1500 and how they would compare to my insurance now. I believe it is less than $50 a year for me for ~$3000 now. A far extreme I believe of their intended target but who knows.