I'm not dismissing. If there is a reasonable chance that you unexpectedly need full-color-prints at saturdays 03:00, or often get the material for the final pri

I'm not dismissing. If there is a reasonable chance that you unexpectedly need full-color-prints at saturdays 03:00, or often get the material for the final prints mere hours for a deadline: sure! cover your risks by buying expensive machineries. It's what they are for. Obviously, you'd need to cross-reference with the actual risk: are you out of a job, failing class, or kicked out of the local church when you fail to deliver full-color-prints last minute: cover your risks by buying the machines that were made for this. My point is that most people don't have those risks. And if they do, can cover those risks with little planning just as well as with buying equipment. You only need to print your CV minutes before the job-interview when such job-interviews are planned minutes our hours ahead (and in my experience that is literally never the case). You only need to print your dissertation last minute if you spent the first 6 months of "writing the dissertation" procastinating. I definitely did that. And I definately found that my printer jammed at 05:50 the morning before I had to turn it in at 10:00. if only I had planned just a little better...