often the cheapest policy is going to be the one you can bundle with other policies. I had my cars already with geico so the motorcycle quote I got was cheaper than anything else going.
How much was the addition of the bike to your car premium?
Well I don't know because it was more of a reduction in costs. My 2006 ducati was roughly $1100 (full coverage) a year with dariyland when my cars were with Geico. This is New York City pricing and I have a completely clean driving record with no accidents or tickets for over 10 years. Progressive was quoting me roughly $845 (Full coverage) a year, and I don't think I was getting a better rate from GMAC or Hanover. However Geico was $580 a year because of their existing customer discount. At the time the bike was still financed so it had to be insured for full coverage. When I moved to Ohio it dropped slightly to just over $500 a year full coverage. Why didn't it get cheaper when I moved? state insurance classifications. In NY the bike was considered a standard since at the time it was new and they just lumped it in the same category as the monsters. In ohio the bike is classified a sport bike, because frankly it is one (full racer tuck and extremely favorable power to weight ratio).
So how much did it add to my policy? $500. But it saved me at the time between $300 and $500 because thats what the other insurance companies wanted to charge me for just the one vehicle.
At the time I bought the bike I went with dariyland because that is who the dealer recommended and had connections with (i.e. were a broker for). I am still pissed I paid them for 2 years without thinking to shop around for a better rate (to be fair I was also 28 when I bought the ducati new so... young and stupid).