I'm no expert on ARM vs x86 performance, and AWS's own language is careful to specify it's only significantly more cost-effective for certain workloads. It'll

I'm no expert on ARM vs x86 performance, and AWS's own language is careful to specify it's only significantly more cost-effective for certain workloads. It'll be interesting to see how fast improvements are made in both Apple's and AWS's processors. That's another factor I see contributing to this: if Apple's pace of processor improvements continues as it has for iPhone and iPad, it'll be tougher year after year for competitors to stick with the status quo.