As i said, if you don't want one then don't buy one. If you think a theoretical miniscule variation in weight of the compressor or turbine wheel is worth paying triple what i paid for mine then more power to you. I'm more than happy with my poor-mans turbo.
What i find funny is that people on her wank over mamba/kinugawa but when another (much better) turbo comes along you won't even take someones positive feedback on it.