Hi Jeanie,
I think you are paying way over the odds. We live in the UK, are both over 75 with preexisting medical conditions. Our annual policy covers us worldwide (including USA), unlimited trips upto 30 days, extra days for a small premium. Suggest you look at Nationwide's Flex Plus account : the account includes all the travel insurance detailed above, breakdown cover on your cars and mobile phone insurance for less than the premium you are paying just for the travel. Travel policy has great service, we had to cancel our last cruise on day of departure as I was taken ill literally as we were leaving the house. Claim settled in full within 5 days. Several other claims made, all settled quickly and with no increase in premiums due to the claims.