Your sort of missing my point, and taking it as a personal dig.
I dont disbelieve you when you say your turbos are manufactured from quality parts.
What i'm saying is if your spending Genuine turbo money, then there are better options for the same spend.
In the same way as an S4 owner with failed K03's will almost invariably never install a pair of brand new K03's, they'll look at the costs, and realise that for the same spend they can buy a pair of K04's with potential for 150hp extra over what the K03's can do, and they'll go K04. Thats what i mean by "bang for buck". If they're not prepared to spend that money then they'll likely pickup a cheap second hand pair of turbos or have their broken ones refurbished.
In the case of the B5 1.8T, its my belief that if your prepared to spend the cash that a genuine borg warner turbo costs, be it a standard K03, a K04-015 or a hybrid product such as those mentioned in this thread, then you have to consider that for the same money, you can buy a turbo like the GT28RS, which i believe is a better option. Not only that, but it then leaves you better set to go further in future, as something like a GT30 becomes a drop in swap.