If the PC throws off enough heat, you can watch live cat videos, as your cats sleep on the top of the PC case. Likewise, if you buy a robotic vacuum cleaner, you can watch your cats turn it into a cat transportation device.
I'm known to do a bit of gaming, and there are some RPGs that are quite taxing on a system (Witcher III and a heavily modded Skyrim spring to mind). The fact that it's great for everyday tasks is gravy...