As it happens, we have a recent example, the Medicare prescription drug program passed in 2003. Democrats wanted government to negotiate prices and thought that seniors would hate to choose between plans. But even the elderly, who grew up in an America where big institutions -- the U.S. military, big corporations, giant labor unions -- made choices for them, turned out to be satisfied with the choices they had under Medicare Part D. You haven't heard the Democratic presidential candidates campaigning much against it this cycle.
My sense is that voter preferences on issues like the economy and health care will depend on discussion and debate that haven't taken place yet. Voters have been concentrating on the curriculum vitae and character of the candidates, and the candidates themselves have made little in the way of argument for their positions. It's not immediately obvious what fiscal policy or health care policies voters want. It's less "the economy, stupid," than "the economy, huh?"