Comment by trhway

It is worth it when it is done right, i.e when you do correct market differentiation (see my other comment here on Mercedes) to avoid your low end cannibalizing your higher end. This high margin really helps you, and this is why almost everybody does it. EVs are probably even better suited for it given that the platform itself is easier/cheaper to share between the low end and the high end - thus the current Teslas S/X story looks even more of a failure as by releasing 3/Y that similar to S/X (that probably helped a lot with 3/Y sales though) they forced themselves into the need for a very significant (expensive) redesign of S/X while having very low sales of it.