...what else will distinguish such flights from, say, taking a ride on a
vomit comet?

I know, I don't want to be a party pooper when it comes to any kind of
non-NASA (read government) supported missions to space, however brief,
but for the ticket costs involved, will people really be satisfied with this?

I can see Joe Average (very rich Joe Average, but still...) complaining that
the ride was like being on a regular plane doing a steep dive, with just a
few minutes of zero-g and a quick view out the window at a dark sky and
a barely curved blue Earth below.

Maybe we should wait for private manned spaceships that actually go into
Earth orbit and/or have an actual destination in mind before we start lobbing
the general public up there.