Screaming Cat and Laver offer a custom service and the ability to talk to the batmaker, that seems to rate very highly as I think people are more predisposed to spending a large amount on a bat if they think they are getting something special. Of course every single bat is pressed by hand and this should be the biggest indicator of performance so it comes down to this in my opinion.
I should also add that a very high price tag will convince a lot of people that it is a very high end product.
Having bought a Laver, even though it's the "cheaper" one, I think it's a good bat, with an excellent middle, however, it's not massively better than a couple of others I have used. I'd suggest that buying from some of the pod shavers on here where you can visit and physically feel what's going on is probably just as effective as going to Laver or Millichamp. And you won't be paying the enormous sum of money involved in getting a grade 1 willow bat with their name on it and getting it shipped halfway around the world.
I'd say that my Laver certainly isn't a plank, but it's not as beautiful as I was expecting and although it does go like stink, it's not quite as good as I was expecting. Having said that, it scored me 40* off about 10 balls in a six aside tournament, so I cant'really complain....