Hold on just a minute, the discussion about India is off-topic.
It's now a big topic in the main news section
Subsidized phones do not sell in India because people switch from one carrier to another on a regular basis, and more importantly, the market is geared toward buying unlocked phones. Additionally, it is a cash society since credit is very difficult to get.
Right, and that's why we're not talking about subsidized phones, or at least, I'm not.
The discussion was about whether having a wider range of phone models is useful. My contention is that low end, low priced models are needed in much of the world if you want lots of sales. I don't think this can be debated.
The response from some is that Apple is making massive profits and therefore has no need to make a range of models. This is true as well, but it also only applies to Apple because they currently address far less of the world market.
In other words, the range of models depends on how many markets the maker wishes to address. With/without keyboards. Screen sizes. Features. Price.
Cheers!