But the previous person who commented said it (the extra weight) was significant to them. Therefore it is your opinion against theirs. You don't seem to understand that your opinion (that the extra weight is not worth the difference) is not the only opinion that matters in determining Apple's product lineup.
I have to disagree with you. I wouldn't say that my opinion is not the only opinion that matters in determining Apple's product lineup. In fact, my opinion has absolutely no meaning for Apple and it will never influence Apple's product lineup.
What I am saying is that, from a business perspective, the 13-inch Pro and the 13-inch Air are cannibalizing themselves, as they seem to compete in the same market. When Apple first released the 13-inch retina Pro for US$ 1,699, it was a failure. People saw it as a possible replacement for the 13-inch Air, and not for the 15-inch Pro. But the price premium over the Air (which sold for US$ 1,199 at the time) was not worth it for most customers, and they refrained from buying the 13-inch Pro and bought the Air instead. This is how I read it.
But now, we have two 13-inch laptops in Apple's lineup. The Air is cheaper, thinner and lighter and has a better battery life. The Pro is faster, more powerful and has a better screen. Each has its advantages and disadvantages. But these lines of laptops have never been so similar as they are right now. The difference is not negligible, and may be important for some users. I understand that. But, still, these two products end up being competitors, even though one cannot fully and perfectly replace the other.
If Apple chose to drop both the 11-inch and the 13-inch Air from its lineup and replace it with a 12-inch Air, what would happen? As I see it, some people would migrate to the 13-inch Pro because they would want the power and the screen size. Some people would migrate to the 12-inch Air, because they would want the thinness and lightness, despite the smaller screen size. And some people would complain about it, because they think a 13-inch Air is the perfect solution. Still, those people would have two alternatives to choose from: the 13-inch Pro and the 12-inch Air, which may replace the 13-inch Air, even though they might be, in those people's minds, imperfect replacements. But it wouldn't be the end of the world, they would survive.
I remember when Apple chose to discontinue the 17-inch Pro. People are still complaining to this day. But many of them settled with the 15-inch retina Pro. And some of them may even prefer it now.
I cannot predict what Apple will or will not do. All I am saying is that, as I see it, it makes little business sense to keep two products which are very similar in line, especially for Apple, which likes to offer only one solution to each need, and does not provide its customers with options to choose from. If that happens, I would be sorry for those who prefer the 13-inch Air, but I hope they find comfort in the 12-inch Air or in the 13-inch Pro. Anyway, Apple customers should know, at this point, that Apple restricts the choices of its products and, if they wanted to have options to choose from, they would better switch to Windows.
What I would see as a really bold move is this:
https://www.macrumors.com/2013/12/2...ad-in-october-2014-larger-iphone-in-may-2014/
Would Apple really think of replacing the 11-inch Air with a 12.9-inch iPad? That would be really bold, as they both don't even run the same software.