I would absolutely love to go on a trip like that, but not for that price. There is so much you can do for that amount of money... Trips to places I haven't been, for instance.
I'd be a bit nervous, I guess, but I think I'd be more excited than nervous. I guess I'd feel safer if there had been commercial travels for decades just like for other things. But really, I'm freaked out every time I take a plane that it will crash and I'll die, and I don't see why it would be worse in space. The worst case scenario remains the same: we crash and I die. And apparently more people die in elevator crashes than plane crashes, or something.
I wouldn't be worried about depending on human-made things, because you do on the plane too (there isn't air to breathe outside either) and I've gone scuba diving, to take Puzzle's example. And I've been in trains that went under a sea or a mountain. All of these have big potentials for disasters. Same with rollercoasters...
In other words, I think the thrill of it would be greater than the fear about it, and it would make it worth it. But only if it was much, much cheaper or I was much, much richer. And still, probably not the second one, because there is so much I could invest money in that would be more worth it.
EDIT: also, if there IS an accident, there is a chance I'd
end up on another planet as a God.