The only downside is that I have to be slightly prepared if I am not going to be able to easily consume my regular doses of caffeine. And if I want to cut/stop, it takes about a week or so to do so comfortably.
As for the glorification, I think it's really a glorification of workaholics, and 'needing coffee to get through yet another pile of TPS Reports' is more a badge of honor than anything else.