I see, I can guess that you have personally contributed to Apple's profitability then Aris?? Thanks, your contribution is appreciated. Apple's marketing is simply amazing - when they introduced Wireless charging a couple of years back the marketing blurb suggested that Apple had invented it, claiming it as an Apple innovation, the reality was that the competition had achieved it for mass market release using the QI standard about 5 years earlier. These days, and the real reason the hardware doesn't need to be innovative is that Apple's locked-in eco-system of services means that it's more profitable supplying media (music, movies, games, payments etc) than relying on 'me too' hardware sales and here we are back at 'willingness to pay' because the extremely loyal customer base will happily cough up. It's interesting to note that Samsung has tried really hard to get a media eco-system to generate a services model to match Apple - and failed repeatedly as the customer base is broader with a much lower willingness-to-pay. Please don't think I'm anti-Apple, I'm not - massive respect for an utterly brilliant business model. Please keep buying the products - my shares are performing very nicely thank you!
Back to the cartridge question and why prices never seem to go down - for that we need to look at the supply chain and how prices in manufacturing are arrived at, the truth is that raw materials are just one small piece of the puzzle:
Payroll, NI and pension, capital equipment investment, energy, transport and eco directives i.e. waste disposal all contribute to the 'cost build-up' of the final product - and that's for all suppliers. The staff expect an annual pay review, pension payments rise accordingly and the relentless rise in energy costs all serve to ensure that the prices need to continue to increase.