I guess that people´s opinions are in the same logic as the ones regarding buying a 65000€ car that "does the same" as one of 30000€.
Not a new story. It also happens with Eventide, Lexicon, UAFX and whatnot.
In one side is the fact that not everyone can afford certain costs, so can only think about buying the best product they can afford that acomplishes their needs.
In other side, there are people that, even being able to spend that money, don´t think it´s worth it because the difference in quality does not match the difference in price. Or at least, they can´t notice that quality difference. Or they don´t care about it.
And then, there are the people that clearly notice the quality difference and need to have the best quality, no matter the price. And of course, the snobs... which are always present.
My personal situation is that I can´t happily spend that much money for a non-complete solution. I can. But not happily. I have to think it twice, prior to pull the trigger. Besides... I´m perfectly happy with Boss-style effects quiality level (so to speak), so I feel much more useful a Boss MS-3 (much more complete unit and much more options in any regard than the VP4), for much less money.
I´m no t saying the VP4 is not worth its price. Not saying it´s overpriced. Just saying that, just the same as I´ll never buy an Eventide, I´ll never buy an VP4. For me, it´s not worth it at all. Let me insist: this is in my personal situation (economical, musical, logical).