CONGRATULATIONS GIRL!
You are going to love this machine, I understand the anxiety over the price though, I actually bought a Demo machine when I bought mine which is sort of funny because I could afford whatever I wanted but I think we who have grown up sewing have a very conservative careful side, which is a good thing.
The best thing about the 830 is I don't think you could ever out grow it, there are so many things to explore you will never get bored !
I am happy for you!
Franye