Keep in mind, when shopping insurance policies, that the ‘most reasonable rate’ doesnt necessarily mean good coverage. Comparing policies is like apples and oranges, especially these days. As people have noted, there are now co-pays, max limits on diagnostics/treatments and variant deductibles. You might be getting a good deal on your premium, but that $200 you save might show up in a higher deductible, per claim, so in the end, are you saving money?
It doesn’t mean that one plan is better than another. It all depends on what you want your insurance for. My horse is insured for less than he’s worth, because Im not particularly concerned with a big mortality pay out. I pay less on premium for my major med but my plan only covers 50% on high end diagnostics, however I know that I am less likely to pursue those diagnostics in the event I should need it. But because I have a lower coverage plan, I can afford to have a higher amount of major med ($10k) that will come in handy in the event my horse needs colic surgery or has a major injury such as a joint involved laceration or illness requiring intense treatment and possible clinic stays.
I expect to pay more for my diagnostics but I have a lower deductible and premium. Others with more upper level horses or different preferences may be willing to pay more to ensure that when that horse needs a bone scan or shockwave or IRAP then it will be covered. Everyone has different reasons, but you really do need to know what you are looking for in an insurance policy when you insure your horse. Dont just look for the cheapest quote out there. 
