I have a Bernina 730E that I upgraded from a 440QE that was already paid for, so it was trading in like a car, and got an awesome price on the new one. I absolutely adore my Bernina 730E
That being said...I would have to auction off my kids and take out a second mortgage on my house to be able to afford the 830. Even given that it has an extra long throat and can be put on a quilting frame, I just can't see the price for me anyway. I spent less than that on all of our cars. Even if you get the 820 with out the embroidery, it is round 9 grand. I looked at some of the new top end Brothers and Janomes and I think Baby Lock and they aren't cheap either.
I do agree that if I was going to spend that money, I would go for a long arm. The Baileys can be had for around $3000, and my Bernina dealer had a used Queen Quilter with frame for $4000.
I guess I can just drool and dream of winning the lottery ;-)