I'm also not into AI or LLM stuff now, but who can say if it will suddenly become important to me in the future?
This is another reason to spend less and upgrade more frequently (instead of trying to push a machine too long). Buying for 10 years, you have NO IDEA what we will all be needing computers to do at that point. You might not even need one by then (maybe your phone will do enough and plug into peripherals) and the extra you spent today on a beefier machine ends up pointless.
Spending less more frequently gives you more opportunities to re-evaluate based on how the industry changes.
example:
M4 generation to M5 generation = 4x speed improvement in prompt pre-processing for AI.
We're at a tipping point for tech right now after a long period (I'd argue, ~1.5-2 decades**) of "same thing just a bit faster"; AI, augmented reality, system agents to help look after background tasks, etc. are all coming and there will be massive improvements in how new machines handle these things in the coming decade.
edit:
** not even joking, computers have (had) been "good enough" for the basic stuff most people do for 15-20 years now, hence you getting 10 years out of your old machine.
I genuinely think the next 5-10 years will be very different, and that trying to plan for 10 year machine life right now is a mistake.
I've been in the industry since the 90s and it really feels like we're coming into a new period of significant advance, much like we were between say 1990 and 2000 (where CPU speeds went from say 50mhz to >1000mhz, graphics went from software 3d rendering to GPUs, audio went from single channel or PC beeper to fully digital music, video went from crappy 240p real video to 1080p h.264, etc.).
The 1990s decade for tech advance was NUTS. I think we're seeing that sort of tech advance again - after consumer grade gear being stuck on quad cores for a decade+, core counts have exploded. GPU power has exploded, neural cores now exist, etc.
The mid 2000s to say 2020-2023 ish was very stagnant in terms of both performance improvements and as a result
actual new things to do with a machine. That's different now.
Same advice above applies if you were looking to buy a PC as well, this isn't apple specific advice.