I'll be updating my 4s to the 5SE. I wouldn't say my 4s is running well as battery life has diminished to only a few hours, chrome crashes frequently, and echoing a key can take 2-3s at times. It has survived 5 years of daily use and it's still functional as an ipod touch now, everything still works which is more than I can say for my iPad 1 which topped out at iOS 5 and has become a heavy kindle. I'd vote the 4s as the top Apple product when ranking based on how well it's aged and years of useful life without upgrades.
Imagine if Apple were this smart about the mini (quad core skylake and option for mobile graphics card at $700 price point) and the macbook pro (13" retina skylake refresh w usb 3 (x2), usb-c, and tb at $1300 price point). Those two products, along with this phone, would go a long way to quieting those of us who care about tech quality as much as design. The sad truth is that this 100% doable today, and it wouldn't even take a lot of work to make it happen. Maybe cut memory upgrade prices by 30% and we'd stop whining about soldered-on ram too?
Where apple is failing is with strategy. They are betting on their buyers to be less tech savvy than their fanbase. Eventually that strategy is going to catch up with them. It feels like that's happening these days.
I'd be willing to bet that apple could sell 5 products (Phone, Tablet, Desktop, Laptop, AIW) and make as much money as they do now, with 3 categories for each (cheap, mid-level, pro). The naming confusion and feature segmentation within each product category, the watch's very existence, the massive gap between the mini and pro in price and power, selling 2 year old hardware at retail price, lack of upgradeability in all products, unnecessary form factor differences, and the absolute mess that is the macbook/macbook air/macbook pro lineup is what I consider laughable. I like Tim Cook's smile, but I do not believe he has demonstrated himself as a competent leader.