In 1980 the Democrats had failure of an incumbent and the GOP gave us Ronald Reagan.
In 2013 the Democrats have a failure of an incumbent and the GOP gives us Mitt Romney.
Have things changed?
Not all that much. Being a republican governor of an extremely liberal state, Reagan's history at the time was sprinkled heavily with big government liberal spending habits and compromises.
But that was when it was OK for a republican to compromise with democrats. They can't do that anymore , or they're not good enough to be elected. They have to be perfect.
By your standards, Reagan would have been considered a RINO:
1.Reagan tripled the national debt
2.Reagan raised taxes 11 times
3.Reagan expanded the size of government
4.Reagan supported the "socialist" Earned Income Tax Credit
5.Reagan negotiated with terrorists in Tehran
6.Reagan gave amnesty to millions of illegal immigrants
7.Reagan signed abortion rights law in California