I finally upgraded 2 five-year-old PCs this year, and that was only to get SATA3 and USB3. (One Intel and one AMD. The AMD, with a weaker processor, boots up faster.)
I thought I had no use for smart gadgets but I got a tablet recently (for free thanks to bank promotion) and find it a fun toy and occasionally useful. It sucks for doing any serious work though.
I don't know what this means for Intel.