I don't think the AK's are bad products, but I sort of think that they are testing the waters on brand loyalty to see how far can they can push the customers. It's hard to keep up with all the hype on each launch of AK240, 240SS, 380, 320, in such a short period of time..
The important thing about super expensive products is that they demonstrate what a brand can do with no excuses about the cost being the factor. It's actually really hard to create a desirable product that makes people justify spending that much money with confidence. (you can't just hike up the price on a crappy gear and expect everyone to believe it's worth the price). In that sense, AK has done well in making people go crazy over them, just like Leica cameras etc. It doesn't necessarily mean that the sound quality is superior in every way.
Personally I think a DAP is a gadget that becomes obsolete very quickly (unlike speakers and power amps), so it's best for me to frequently update to a new DAP in the price point that I can afford.