Who the fuck wants to own tens of millions of people losing their health coverage, others having to pay more, and inevitable stories of scores dying because of it every month - for what, $100k from some health insurance lobbies for their next campaign? Even the crooked, dumb-as-shit Republicans aren't eager to take that deal.
They never had a plan to replace it, they damn sure were never going to improve it. But now it's go time and they're realizing that even their notoriously stupid and uninformed GOP voters aren't quite that stupid.
On an unrelated note, they're going to get away with dashing Net Neutrality because GOP voters are too stupid to grasp not only the nuances of the subject, but the basic premise. But it will hurt them in a few years when the cable companies do the inevitable and fuck over everyone.