I'm not sure though that a stress ECG is inconsequential. Internet research into medical subjects is always potential trouble but I think there's enough out there on some of the more intelligent websites to indicate that stress ECGs can help early diagnosis of certain problems. It seems to me that especially with regard to the fluctuations of diastolic blood pressures, the dangers of individual hypertension can be better interpreted. I'm no medical man and I hate doing the treadmill when it's 28'C at 5,500ft but I would not want a stroke caused by high blood pressure if a stress ECG could have seen it coming.
It's always a relief after the stress ECG to find that a heart attack didn't happen. It kind of reinforces the conviction that a life spent exercising is a lot of time wasted because death is death and torturing your body doesn't prolong life for one moment.
(Gingernut, who I think knows how to sharpen a scalpel, and is a helpful in these matters, might have some pithy comments to make on mine?)