When you bet 62% of your revenue on one product line, these things happen.
Can there be a single person who after ten years doesn't realise you NEVER buy an Apple phone when September is less than 6 months away? Even an S upgrade is worth waiting for.
If Apple spent some more effort on OTHER products and had quarterly release schedules they could flatten out the September spike. There's a lot of other products they could surely spare a few people to work on. Can it really take that much effort to upgrade a laptop with faster processors or more memory? Really?
For too many years we have heard about "the pipeline of great products". Where are they? Why not release the rumoured iPad 10.5" now? Get something positive happening in that space and flatten out the release schedule? It's not that hard to think a January Mac/laptop release, April iPod/iPad release, June Watch/TV release and September iPhone/iOS/OS would spread the load and keep customers happier.
It just feels now like Apple sleeps until June then wakes up and goes "oh we better release something this year".
I used to regularly upgrade iPods and iPads. The incremental increases in speed and capacity and continued premium pricing finally cured me. Memory for other brands is so much more "real world". For music and video I jumped to the dark side where Android phones and tablets let me use OTG USB and SD cards to store way more media. Sure the software isn't as polished as iTunes but VLC works well enough.
iTunes is a mess. Has been for years. Once I could put everything in there that was mine. Then the focus shifted to getting me into the Cloud - with limits. 25,000 matched songs. That was it. For a long time. There's too much going on in there and too little focus. Menus, sidebars come and go. Too much "Try Apple Music". I do stream but use Spotify and Netflix. Why? Because my ISP provides unmetered Netflix and my iPhone carrier gives me unmetered Spotify data.
Apple today seems like Microsoft at it's peak. Too scared to do anything other than milk it's success. It took competition (and ousting a few lacking-in-vision managers) before they got their act together again. Apple hardware and software have always been more durable, better quality and felt worth the premium price. My 10 years old iMac only just can't run the latest OS. It soldiers on and for most tasks works well. But it could be due an upgrade if the right product came along.