Question about Apple iPhone 15 Pro

Hello - this has to do with the current sales figures. This is intended to boost sales of the 15 series, as sales of this model are stagnating. This also has to do with production and technology. If a predecessor performs better, then the company is left with the current devices/parts, and a lot of these have been produced, in contrast to the predecessor, which is to be reduced. This costs the company immense sums of money if it has to produce new supplies. As soon as a new model comes onto the market, it's all about producing spare parts for the predecessors.
Similar to the production of cars.
And, of course, the companies also know from sales behaviour that many people speculate that the predecessors should actually be cheaper. This is also a countermeasure. The new goods have to be sold, the warehouses are full and that costs money.
Mfg. B.