I would have to strongly disagree with that. I have a Parasound Halo P5 preamp that I bought brand new, and it sounds excellent. It sounded much better than the McIntosh and Musical Fidelity preamps that it replaced, and those preamps were a lot more $$$ when new than the Halo P5 brand new.
I then get the BillD C-1, and that preamp totally ran circles around the Halo P5. And now my recently modded 4000t runs circles around the BillD C-1. Like you, that's just my opinion, but others who have compared a BillD C-1 against much higher priced, modern preamps have come to the same conclusion as I.