6. It is unless you're a fan of less coverage and higher prices
Per the CBO, the ACA will result in 60% coverage of those who were previously uninsured. I'm not sure why anyone would think that's a bad thing. Furthermore the costs go down. While the rest of the nation was seeing their health insurance premiums go up, Massachusetts saw theirs go down. The individual mandate, like it or not, makes all of this happen.
Personally I believe single payer will come not by legislation, but by public demand. Once the rest of the US sees how well Vermont's system works, more states are going to want it.