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No doubt about it, and it's all in the math.

Problem is that the people selling you the mining product don't want you to know that, and they do everything possible to make it look better than it really is.

Direct buying is the winning option, and better still if it's 3rd generation crypto that is as far away from POW as possible!

yes agree. The more they mine the more slower it becomes and in the end less ROI.