What makes a DAC so expensive?


You can buy a Cambridge Audio AXA25 25 Watt 2-Channel Integrated Stereo Amplifier | 3.5mm Input, USB Input for $225, and most DACs seem more costly. 

I'm wondering what it is that makes a Bifrost 2 almost as expensive as an Aegir and 3x's as expensive as the Cambridge product, above. I would have thought an Aegir would out-expense a Bifrost by a factor of two or three. What are the parts that make the difference? 

I'm wondering if the isolated DAC concept is one that comes with a "luxury" tax affixed. Can anyone explain what I'm getting in a Bifrost 2, or other similar product that justifies the expense...?

Thank you.
listening99
time for this thread to die

no more useful info for the op, and for everyone else reading it, it must be a terrible bore 

life is short 

lets all move on
@mahgister and @duglas and others, I appreciate the thrust of your comments, and there is one significant piece that is left out of much of this discussion, which may be the largest determiner of the music experience:

The quality of the listening. 

You may have perfect ears and still lack the stability of attention to receive the full musical message. This is not a small thing.

Why are we not discussing our listening habits - the one component we all have some control over, which can be improved with ongoing reflection...

My preference would be to share some discussion about how people listen and how they have worked with their listening over the years. My sense is that people don't notice how they listen, and often follow habitual patterns when listening.

One interesting, and I think "audiophile" flavored example, comes from a post I read some months ago, where the person described how difficult it was to listen to his system for more than a few minutes, because he would become absorbed in criticism of his system. 

That may sound familiar, or it may not, but what is missing is the fact that everyone is facing "habits" in their listening that impact the experience greatly, probably much more than any particular component. If I sit down and my mind is restless the entire time, for example, it may be nearly impossible to enjoy anything coming my way.

This shifts the focus ever more away from products and consumption to the person. Many people are chasing the wrong thing, not noticing how poorly or inconsistently they listen. And by the way, you may be able to detect differences at minute levels between various components and still fail to sit and relax enough to truly enjoy the music.

So, the listening piece gets more personal, more internal, more real than the next DAC. 

Any thoughts?
@jjss49 How do you listen? What are you habits of listening, and are they significant to the value of your music listening experiences?
There is a concept in economics that says "price rations the supply."  This is usually  brought up in a discussion about crude oil or soybeans.  However, the principle will travel.  If you manufacture 100 DACs a month and can only sell 35 of them your probably priced to high.  But if 99 of them find a new home each month, your right where you should be.  
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