There's an important market segment though that these will suit well. People on budgets doing upgrades of cheap systems. They'll likely continue to use their old video card, which will probably be better than Intel's integrated GPU, but will swap out the motherboard and CPU (and maybe RAM).

When I was much younger, and on much more of a budget, these "computers of theseus" were my main rigs for a long time. The meta-game was to try to see how few parts you had to swap out from piecemeal upgrade to piecemeal upgrade.