Let me put it this way. I have heard a Marantz 6002 through a Benchmark DAC1. I have heard a number of other CDPs such as NAD, CA, Primare, Creek etc.
In the recent past, I have also been troubled between the choice of going for a CDP or looking at a serious PC based music system. I experimented with a Core2Duo PC using an Asus Xonar STX. Using cPlay, and FLACs and routed to an 'ordinary' amp using an Arcam rDAC, I very strongly feel I have achieved my sonic nirvana. The kind of sound stage and three dimensionality I heard from this combination, I have never heard before excepting in the 6002+DAC1 combination. But, in that case, the amp and speakers were at least five times more expensive than what I used with the STX + rDAC.
I will be writing a detailed review after I overcome some issues in terms of OS and ability to play at the kernel level using ASIO drivers. In my mind, at least for me, the CDP is dead.
At the same time let me warn people. The PC route can deliver wonderful music. But this path is wrought with dangerous steps and need a high level of commitment, and the ability to see the light at the end of the tunnel.
Cheers