I work in IT and we had a literal plague of the knockoff caps blowing out in equipment. Motherboards in workstations, two HP (yech) servers, tons of video cards and power supplies, power supply boards in LCD monitors, etc. IF they died quietly, they just puffed up and leaked electrolyte. Sometimes they spat and fizzled, a few times they detonated. Not much stinks worse than that.
Although we did have two servers die completely, there were redundancies in place so the services they provided had minimal downtime. Mostly it was workstations and monitors that died. Though we did drop a core switch because of bad caps. That wasn't a pleasant automated call at 5am...