It really makes more sense to just buy a laser printer, in almost all cases.
Still not worth it. My Brother is hitting 10 years now, and I'm trying to think of many scenarios where I really needed to print colour at home.
Even if you can afford a color laser, the problem is a color MFP (ie including a scanner) occupies a lot more space compared to a equivalent inkjet, and for some people this could be a deal breaker.
I switched to laser because I only print like maybe once a month on average (but when I need it, I need it). I'm not the slightest bit worried about the delta energy usage between my laser printer or the inkjet, and I'm sure the inkjet came out worse given the number of cartridges I had to throw away or paper I wasted printing diagnostics.