I asked myself that same question a few years ago prior to getting a Sig. MK2a pre. You can refer to my past threads over the years.
At the time I couldn't find one for sale used nor did anyone around me have one to listen to so the only option I had was to purchase one.
Someone PM'd me and within their email said: owners are just enjoying listening to music and are content, they don't sell them they are that good.
Those words intrigued me enough to take the plunge so I decided to purchase one, they are very exspensive and the wait time can be long but I feel now what I know was well worth it.
I have owned allot of world class pre-amps over the years and I must say after hearing this in my system has gotten me off the mer-i-go round, I find my self just listening to more music and not thinking about a pre-amp.
Next was when I bought my speakers (MBL 101E's) which was prior to the VAC purchase I thought I had bought the right amps (CAT JL3 Sig. MK2 mono's)to power them and that would be it. Well it wasn't and it sure has been a long journey, I have lost track of how many different amps I have had paired up with these speakers and most were just okay but at the same time doing this I could hear the huge potential so I never gave up.
I get this VAC pre and I'm very happy indeed and my speakers are too so then I read VAC is coming out with some cost no object mono blocks, I wasn't all that excited about reading the cost no object because I knew what comes with these specific words, big dollars.
I have been listening to amps of all costs and types, always leaving the cost out of the actual equation. I just wanted to hear what ever it was being the end result and go from there.
Well an oportunity came available for me to hear a set-up in a real world situation, in someones home, with the same pre-amp and speakers as mine but with these VAC 450's.
What's the chance of this ever happening?
I had to take a flight, this all happened very quickly. My thoughts prior to arriving was all subjective and I would be content to leave with what ever it may be, good or bad.
I was there for three days and did my normal listening evaluation process trying to find the goods and faults. After being satisfied with this then I evaluate the fit and finish, eye appeal, looks and lastly the cost.
Well all I can say is that these are the real deal, nothing has come close as a whole package and left me in awe.
My intentions were to at least hear this set-up and leave saying bla! bla! but they aren't really worth the crazy price.
Well long story short they are so I ordered a pair, once I receive them my hunt will come to a end.
So in the end this will all mean I will also be less active in my postings and just listening to music.
Anyone reading this if you have the means do your self a favour and some how hear these but be prepared.
Kevin two thumbs up along with my hat off to you and others at VAC for firstly coming up with such designs along with then actually following through and producing the end result.