I wouldn't balk at paying a little more for a build-to-order system over an off-the-shelf thing; I'd expect that. It would be okay as long as the charge is not

I wouldn't balk at paying a little more for a build-to-order system over an off-the-shelf thing; I'd expect that. It would be okay as long as the charge is not too egregious and you're getting a decent build for it. And it sounds like you do.