There are two current schools of thought when it comes to high-end audio. The first is a series of regular changes to the line (the Mk I becomes the Mk II and so on), and the other is the Burmester way.
If you only require one phono input and do not possess an all Burmester system, the 100 Phono
is probably a bit on the high side of the price spectrum, but it becomes more reasonable (at least
as reasonable as a $20,000 + phono stage can be…) as you add the second input and even
more so if you make the ADC part of the bargain.