Some of the most challenging black pistes (colour-coded to denote difficulty, with black being the hardest to ski) are now so steep that snow-cat vehicles which crawl up the slopes every night to flatten and recondition the snow have to be fastened from a winch to ensure they don't slide down the mountain.
But the commercial incentives for maintaining - or introducing - pistes such as Madonna di Campiglio's famous Spinale Direttissima or Mayrhofen's appropriately named Harakiri slope in Austria are clear.
Renzo Minella, the president of Dolomite Tourism, said the hardest pistes were in huge demand. "It's clear that the ambition of every skier is to measure themselves against difficult slopes and therefore the very rapid pistes have an added value, especially for the ski resorts that want to host the competitions at the highest level," he said.
Much of the Alps has been struggling to attract skiers in tough economic conditions. According to Ansa news agency, the average cost of a week in the Italian mountains in peak season will be 932 a person this year and 2240 for a family - without taking into account spending money.
But Minella added that guaranteeing safety and maintaining the super-steep black runs could be "very complicated and costly".
After a spate of deaths in the Alps in recent years, authorities have sought to introduce more police patrols and even punishments for skiers who behave dangerously or put themselves or others at risk.
In Switzerland, fines of SFr1000 ($1350) have been handed out to irresponsible skiers, and some have been asked to pay damages and to meet the cost of rescue operations - often tens of thousands of Swiss francs. Some offenders have also had their ski passes confiscated and been put on resort blacklists.
But most of the dangerous incidents have occurred as a result of skiers ignoring warnings about off-piste activity. Statistics suggest that the rate of serious injuries on the exceptionally steep black runs is lower than average. Minella said their reputation meant that even the best skiers approached them with caution.
Tone Valeruz, one of Italy's best-known "extreme skiers", said that the piste he considered among the most challenging was the Piculin slope at San Vigilio di Marebbe in the Dolomites. "It can scare even a very good skier, not only because of the vertical decline but also because of the lateral slope. If you fall, you fly off the piste, especially when the bottom part is icy."
He noted that on the steepest of descents, staying upright was more about controlling your fears than your technique.
- Independent