@Enderman
I had an old computer that started with a Pentium D that managed to survive ten years of gaming usage due to upgrading the gpu, psu and ram.
I prefer to see a cost/performance comparison on the individual component and not a whole system. I understand that the system cost will change during the lifetime of the cpu/motherboard as I rarely upgrade either, preferring to upgrade the RAM/GPU and build a new system when the cpu/motherboard is lagging behind in my usage.
People who aren't researching compatibility or future proofing and buying ten dollar CPUs...beyond that, most, if not all, reviews are direct comparisons between the current lineup of future proof components and giving a cost per direct comparison isn't he same as LTT encouraging a straight "get the cheapest cost/performance Ever!" There is no need, IMHO, to muddy the waters here.