Don't be such a fool. The actual profits is what counts - ROI. Both items are cheaply produced and while it seems they are also cheap to buy the overall profit on the investment for the companies is quite large. When you factor in the lifetime use for this stuff, the producers are well motivated to keep you buying this whether it is good for you or not. It is a satanistic conspiracy funded by the hegelian communists....
And since it is pretty worthless and potentially dangerous, throwing your money away should be the least of your concerns.