My color laser provided significantly better color than any of the inkjet I have used. It provided nice even color. Whereas the inkjet color was often banded.
I wouldn't buy a general consumer inkjet though.
I used to have an Epson A2 printer and a full set of inks cost more than £500.
You can get ink reservoir systems but they're messy and rather fragile. Although they do pay for themselves if you're printing at scale.