Luckily today most people are at the point where they just don't need more power. Most people need enough to run a web browser and do a bit of word processing. They might need enough to open a spreadsheet or a presentation.
Most people would be happy with something like a good tablet and a monitor / keyboard dock.
It would be nice if the churn of "more power" could switch focus to "power efficient" or "better optimisations" or "better architecture" or even "future technology with advanced architectures".
Sure, there are people who need media streaming; or gaming; or compiling; or multicore crunching; or rendering farms; or etc. They'll always have machines. I guess parallelisation needs to improve a bit and clustering needs to get better.
[1] some of these people were using less formal definition of "double the 'power' / 'speed'" rather than more formal "double the number of transistors per IC".