I have 2 motorcycles and two scooters. Full coverage on both scooters and one of the motorcycles. I pay around $400 per year for all four with Progressive. I used to sell Motorcycles. When customers asked about insurance I'd give them the numbers for Progressive, Geico and a local company and tell them to shop around. Progressive was almost always the lowest price.
I have my my Auto and home insurance with USAA. They don't do motorcycles, they farm it out to Progressive.