None of you are thinking like Mr Shimano......he wants sales, he knows people are now obsessed with the latest thing (see mobile phone sales...), he knows nobody fixes anything anymore, he wants to make stuff cheaper to improve profits.
Welcome to a perfect storm of crap.
Poor quality that wont last, at high prices, sold to people waiting in a queue to buy it, who will either sell it on in 2 years before it wears out or accept that it goes in the bin when it breaks.
Why on earth would Mr shimano ( or any other manufacturer) now want to make something the quality of an XT M730 chainset, that never breaks, with 10k ring quality and that will still be in service 35 years after he sold it!
He proved his reputation with that and is still trading on it.
Wow I've got cynical.