This was a kick -- the-- can day for Republicans.  They did not vote to repeal the ACA. They voted to go into discussion of  a replacment. In political terms it means that if they can hold off for a year on actually having to pass legislation replacing the ACA they will look good during the 2018 elections.  It is a win win for Republicans.  They go home and say look its in the process of repeal to the voters who want it repealed. They go home and tell those against the repeal they did not repeal the ACA. Then they do not have to do anything until after the 2018 election and hope voter do not see the ploy in action. 

Now someone needs to explain to Trump Obamacare was not repealed by a landslide vote today. He seems to believe it was.