And to the extent that the added mass is more battery, many of us are prepared to pay for it. To the extent that it is just more (because bigger) housing, I'd guess that's (more than?) offset by expense saved from not having to design everything else to fit into that last smidgeon more-cramped space.
So, nope, I don't believe there's really much -- if any -- genuine valid technical reason for it; it's probably all or almost all about the bullshit "mine is thinner than yours!" bragging rights.
So, nope, I don't believe there's really much -- if any -- genuine valid technical reason for it; it's probably all or almost all about the bullshit "mine is thinner than yours!" bragging rights.