Hope I made the right choice!
We're now booked to take the Auto Train this September!

And that's not the choice in question, I think we're going to enjoy the AT. I knew if I waited any longer the price would go up and then be sold out completely so I made the leap and booked it. From what I understand, I can rebook and save some money if the price goes down, so now I'll keep an eye out for that (here's to hoping!).
Here's the part where I hope I did the right thing:
I booked 2, one-way trips; there and back. The trip south was very reasonable with a Family Bedroom ($231) but the trip north was another story; $653 for a Family Bedroom! Just a few days ago it was $443 and I missed it

so this way, if the Family Bedroom price drops for the northbound trip, I only have to rebook that reservation, not the whole thing.
Was that a good idea or just a little more work for no real benefit?

Having never done this before, I wasn't sure how rebooking worked. Didnt' know if I had to completely cancel and rebook or what. If I did that, I didn't want to lose a good southbound rate in the process.
Maybe I'm over thinking this; wouldn't be the first time.
I'd love to see a cheaper northbound bedroom!
D4D