I am 64. Born and raised in central Iowa. Worked there our whole lives. Raised our family. Entered retirement there. Until a few weeks ago, Iowa was the home base we returned to every three or four months as we C-Doryed around the country. I love Iowa. It is most often incredibly beautiful and populated with wonderful people ... as are most of the places we have visited. But as our boating base evolved into San Francisco Bay, we were asking ourselves more and more why we were returning to Iowa so often. Too much of the answer was because our house was there, and we had no choice. So we moved to Oakland, CA, and are thrilled with our decision ... although even knowing how much work it would be leaving a house we had been collecting stuff in for 37 years, we truly did not KNOW how much work it would be.
In my opinion, the success of our move was built on our knowing what we were getting into. We had been coming to Oakland and the Bay Area for fourteen years. We know a few people who have made moves ... typically for ill-thought out family reasons ... that have resulted in misery and regrets because they had no idea what they were getting into.
Even though I love Iowa and do not dread the cold as Jim does, I certainly will not miss the heat or the humidity or the cold or the spring slop. On the other hand, having done the reverse of your CA to IA move I can confirm that the financials greatly favor CA to IA.
Regarding Marty's daughter's insights, I agree. Iowa City is a fantastic place. Unfortunately, it is not Iowa. Iowa City is to Iowa what Madison is to Wisconsin and what Austin is to Texas. Meaning many self-identified true Iowans love the Hawkeyes but have a dislike for and a distrust of Iowa City. The truth is Iowa has the same diversity of city types you find in other states ... with differences in scale and the balance between rural and metro. A bright spot is the evolution of Des Moines into a fun, vibrant city.
Iowans do like to boat. I can remember skiing as a child on every river, slough, strip pit, and glorified pond we could find that provided enough room to get up and turn. Some even required stopping to make the turn at each end, but our desire to be on the water and to boat was not to be denied. Now the lakes of the northwest that Jim mentioned and the Mississippi are supported by three large Corps of Engineers reservoirs in central and south central Iowa.
I would not discourage a move to Iowa. I would warn you to know what you are getting into ... but that would apply to any move. And by the way, Marty is on target regarding the sweet corn. If there is one good reason to move to Iowa, it is the Peaches 'n Cream sweet corn. I'm sure we will brave the humidity of the Iowa summer each year to get our fix ... and of course, to see our kids.
I just caught that you specified Iowa City. I'll say again, it is a great town. You'll love it. For boating Iowa City has a small Corps reservoir, and its proximity to the Mississippi provides the opportunity for fantastic river cruising. Regarding winter boating, it is enough to say that everyone who knows Iowa is still chuckling about that question.
Good luck!
Greg