yeah, I love the computerized equipment these days, I'm a computer nerd myself, just built my last computer, overclocked it and yes, it's water cooled!
So I'll admit I'm a sucker for gizmo's and gadgets and wizbangs and whatever else you can computerize and I love the Bernina, it is a great machine, but I think doing it all over again. I'd think I would just head down to Joann's and buy me a simpler singer computerized sewing machine for tons less and then put the thousands of other dollars into a Baby Loc Evolution serger!! ooo man, one of those is calling out ot me!!
so, sorry, got off track I say all that to say that yes, because of a big name you're going to pay more for accesories for it.
I used to be into photography about 20 yrs ago and I'm a Nikon man, but when it came to buying lenses and flashes, etc it was about double to the other major players!!