That's the trick. I pay 500 a year for '08 FatBob (100/300, $250 deduct) with Harley.
I also have State Farm for my cages and house. But State Farm would not cover me on my bike until I got a cycle license. Harley insurance gave me 30 days to enroll and receive my license. I asked State Farm how the heck do I pick up my bike if I don't have insurance. They would not cover me until I received the CY. Also State Farm wanted 750 a year versus 500 from Harley. I haven't had a ticket in over 30 years.
Keeping all you wheels under one insurance company does give you a break. I tried.