If your coke is pure death as a result of insufflation is pretty rare.
Take a look, here are the number of direct and indirect deaths as a result of:
Tobacco, 430,000
Alcohol, 110,000
Cocaine, 4,864
Heroin, 4,820
Tranquilizers, 2,038
Antidepressants, 1,745

SOURCES: Centers for Disease Control and Prevention (tobacco); National Institutes of Health (alcohol); U.S. Dept. of Health and Human Services (cocaine, heroin, tranquilizers, and antidepressants). Drugs in the HHS survey were cited as contributing factors, not necessarily direct causes of death.

When you do coke the first times you may want more, but to actually go out and buy more is a decision you make because you're still in control. Thanks to the government cocaine is unregulated and thus supplied in its extracted form via the blackmarket so the average user can never be sure how pure it is or what else is in it. The form it is supplied in implies it either be smoked as a freebase (crack) or injected/insufflated as a salt. The more direct route of administration used the more intense and shorter lived the effects will be. Smoking and injecting are the most direct route of administration, thus the effects come on within seconds and fade just as quickly. With insufflation it is slower as the cocaine must be absorbed through the mucus membrane.
Frequent, high dose usage of cocaine from any of these routes could result in cardiovascular problems.
Then again, low dosage cocaine gum has been shown to produce a stimulation similar to having a few cups of coffee. It also appears to be safe and is not addictive.