Most Americans think their relationship with their primary care doctor is so important that they would chose to keep their doctor over saving $100 per month on health insurance.

In an eHealth poll, 79 percent of seniors and 73 percent of all respondents said they weren't willing to change docs in order to save up to $100 a month. More would consider it in order to potentially save more than $100 per month—63 percent of seniors still said they would not change plans, while about half of the total population said they would pass up the potential savings.

It's not too surprising considering the importance of good primary care physicians to their patients. For approximately three out of four Americans (72 percent), having access to their existing primary care physician is a very important factor (54 percent), or the most important factor (19 percent) they use to select a health insurance plan. The data come from a randomized phone survey of 1,014 adults conducted by Opinion Research Corporation and sponsored by eHealth.