I am not so sure that the microdots are really "useless". True, they are proprietary, which sort of limits the options. But DPA makes a wide range of stuff for them, including power sources, pres, and the XLR-phantom adaptors, and Chris Church will make power sources and pres for them too. Additionally, they are locking connectors, which can be sort of nice (this is the part of my rig that is most subject to twisting/pulling).
Really, though, the thing that tilts me in their favor is the DPA warranty. In the 406x user manual DPA says, "All products from DPA Microphones are covered by a two-year limited warranty on both mechanical functionality and documented specifications as long as the items are not mistreated, abused, or modified in any way." The way I read that, re-terminating the mics voids the warranty.
Also, the mics with microdots and a DPA power source costs around $1000, so there is virtually no price difference compared to the Core Sounds set-up...
I have heard from another user here that Len (from Core Sounds) will make a microdot to 1/8" adapter cable (and I guess that C. Church would do the same); I would go that route if I was not going to use the microdots. If for no other reason than the warranty...