You're a sick man DP, beeradvo guys rate it too but then they're mainly crazy yanks.
The whole sour thing has been massively skewed by American interest. Prices for limited releases are insane and you get people in BE and NL who go direct to the breweries and hoover up as much as they can simply to sell to the US at inflated prices. In response to this, Cantillon now does an annual release of a special brew (different every year), but only to a certain number of bars worldwide where you can go and drink it on the day of release - if I want some I'll need to go to Amsterdam on 19 Sept - two places in London and one in Scotland will have it.
Whilst it's great that lambic brewing has been rescued - Cantillon nearly died off in the 70s, but has now recently expanded its production - beer isn't supposed to be a super-poncey mega-expensive product.
Also, The lambics you need to make gueze need to be aged for quite a while and someone told me recently that the Belgians are running low on well aged lambic given how fashionable sour beers are now.