> But the equivalent MacBook is thinner than a lecture pad
Sure, but how much value do you get from that? Weight matters, diagonal matters, but thickness alone makes very little difference unless we're talking about something too thick to fit into a satchel.
> and more powerful at most price points.
I don't think that's true? The top and bottom end specs are pretty similar IIRC (same RAM, similar processor, similar resolution...), except for the Surface having a touchscreen, and the price points are mostly higher for the MacBook.