At this point I don't believe that there is any category of equipment that is "end game" at a purely technical level. It may be "end game" to you though.
Point is I would think long and hard about dropping $14k on a DAC. If there is any category that is not mature it is DACs.
You'll get plenty of attention when willing to spend at that level. An alternative is get on a plane and audition.
Just my 2 cents.
Regards,
barts