No. I think those are the three that jump out the most.
On the safety issue, again, I really don't want to get into “we're safer than public transit” or “they're safer than we are”, but I think it is worth noting that the bar is higher for private operators than it is for public operators. It's not usually substantial. For example, GO Transit is exempt from underbody inspections that private carriers have to do. They're expensive, and they're annoying for our guys, and that's why GO got exempted from them: so they could save money.
The idea that the private companies cut corners to save money and public entities don't is not actually true. Public entities find all kinds of way to save money.
If I could, I want to speak to you just for a second on the idea of profit. Companies measure profit in dollars and cents, but public entities also make profits. There is a political profit motive, where councillors or politicians will make decisions with respect to the operation of transit systems based on votes. That's a form of profit. All of these systems are run by people who are, to one extent or another, self-interested in doing their thing.
Accountability is actually stronger in a contracting-out situation because, as Réal pointed out, if you don't live up to the level of service the contractor expects, you lose the contract. If you're a public entity and you don't live up to a certain level of standard, well, there's an internal argument.... How accountable are they? Theoretically, they're accountable to their councils, but they are like any big bureaucratic institution.
Accountability in big bureaucratic systems is a difficult thing to nail down, whereas in a contracting-out system it's much more black and white: this is what you're expected to do, this is the safety record we expect, this is the service level we expect, and if you don't do it, you're gone.