I agree with others that that one dealer sounds like a jerk. I've not run into that with the dealers I've talked with (mostly West Coast), but I've mostly been buying online for a long time.
From what I've heard from several YouTube reviewers I respect, the Chord Dave is a very detailed DAC. I don't know if you can have that and also have a natural, "musical" presentation. You might want to consider the Denafrips or other R2R DACs that strive to sound more like analog. I'm getting the Denafrips Venus 15th on Monday, which as audioman58 says above, is essentially like the former Terminator at a lower price. I also considered the Holo DACs, but they wouldn't allow for 1024k DSD playback of my SACDs, if I understand them correctly. They would be another to consider if you don't care about highest-resolution playback of SACDs.