For laptops the buckets are portability and performance. These two will always be at odds, and people will gladly prioritize one over the other; these are the ingredients you need for creating a model lineup. Each model prioritizes something different:
- Affordability, MacBook Neo
- Portability, MacBook Air
- Performance, MacBook Pro
There's people who will be carry this machine everywhere and will gladly sacrifice performance for portability. There's people who will gladly use a laptop as essentially a desktop they can occasionally move if it means maximum power. You even see this in the wider market; there's a clear category of laptops praised by their portability (ultrabooks), and another group praised by their power (gaming laptops).
I don't think there's an equivalent for tablets, since people don't really seem to need them for that much (lol). Apple has been focusing a lot on portability, but the market of people who carry their tablet everywhere isn't really that big, most people use them at home [1]. Digital nomads, students, PMs hopping around meetings: they're on laptops. Same with performance; people who need performance are on laptops.
The killer use-cases for tablets seem to be drawing and media consumption, but not only is drawing not a huge market, these two aren't at odds. Both are better with a better, bigger screen. A single dimension for improvement doesn't give you the ingredients for creating a model lineup, it gives you the ingredients for a price ladder where more money just gets you a bigger, better screen.
I think the iPad's lineup could be simplified to just one model, but I understand Apple want's to have several for marketing and price-ladder delineation, like it does with the iPhone. In that case, I think like the iPhone, the iPad could do with less overlap:
- 8.3", $ (iPad mini, affordable)
- 11", $$ (iPad, standard)
- 13", $$$ (iPad Pro, better in pretty much every way)
And keep the iPad Air in the same space as the iPhone Air, a novelty luxurious product that isn't the fastest nor the most affordable, but showcases premium hardware and what the future could look like.
I think Apple doesn't do this because it hopes to discover what people want through the grid of different screen size, thinness, performance, etc permutations that currently exist, but oh well.
[1]: https://static.googleusercontent.com/media/research.google.c...