Moon audio 740 p linestage

Anybody got this?  Hear 740p is a great ss pre at around $9k. Seems pricey.  Is this one of the better ss preamps?
Over the years I have owned and still own several Moon Audio pieces. I did have the highly acclaimed 390P with the 400m and was very happy with the sound and build quality of the 390P.

I ended up giving these to my son to take to Notre Dame for Grad School. I also needed to down size as my wife is using my listening room as an office during the pandemic.

I am a big fan of Moon and have the 260D and 280Din my system. $9k is a lot though. Have you looked at used or a bit further down the Moon line?

What will the 740P be used with? 

I've owned one for ~ 5 years or so and am very happy with it.  At the time I was trying various preamps to mate with my Magico S1s and Pass X250.8.   I tried various brands of preamps and a few DACs direct to the Pass and was still searching when a demo unit popped up for sale.
After reading a few of the reviews on it at the time I decided to give it a go just to see if spending decent money on a preamp (to be used with a digital source only) was worth it.   It mated beautifully with my Pass amp and shocked me in how much a difference it made to my system's sound quality and ultimately my enjoyment overall.   

It is built like a tank (it comes with 10 years of warranty...) and has worked perfectly for me while being on continuously; the biggest complement I have for it is that after trying a few pretty decent DACs direct (e.g. Berkeley and a Bricasti) direct to my amp, I still prefer it in my audio chain.  I found it might give up just a touch of resolution compared to those DACs direct, but it added a 3d like image and soundscape that makes the music sound more real to me.  It also offers very good dynamics and bass.   I think I found the Berkeley direct may have seemed a touch faster/dynamic, but I found it added more dynamics than with the Bricasti direct.   

So in terms of coloration or masking of the sound (many complaints folks have when adding a preamp) I have a couple good benchmarks (based on my ears...) that lets me believe its tone and musical color is pretty much spot on with how I hear these DACs direct in my system.   That gives me a level of confidence when trying different amps or DACs with the preamp that it is not shading/changing what I hear from those components.  I've tried 4 different amps and likely 5 different DACs with this preamp and it still remains the bedrock of my system.

Is it worth the cost, that is a question for you to answer, and I would suggest as others to look for a used one or demo unit.   
Relatively speaking, comparing what differences I hear with cables and the various components (DACs and Amps) I've tried over the years it has been certainly worth it for me based on what I paid for the demo.
The Bricasti has an excellent balanced  analog output  (I run all balanced) and after hearing it direct, if I was starting over and didn't already own the preamp, I would consider to go with the Bricasti direct.   But then I think what happens when I replace that DAC (which I always do) if the next DAC doesn't have a variable output or one that sounds as good, then I need to buy the preamp again....    I've already moved on from the Bricasti and my current DAC doesn't have a variable output, so it is not such crazy thinking after all :)

Hope that helps, and again this is all my findings based on my system and ears...

Wow ddafoe what a comment. Great insights.

wish manufs would seek units broken in.  
Need an adult beverage right now, so much to deal with