Laser Cleaning Machine’s shortcomings

There are also many shortcomings of industry laser cleaning machine for rust removal , mainly in the following aspects? 
1, the laser radiation from the laser rust remover directly irradiates the eyes, will cause irreversible damage to the retina and cornea. 
2, the first investment cost of laser derusting machine is large, the price of laser derusting machine ranges from 3 to 300 thousand, compared with sand blasting derusting first investment cost is larger. 
3, laser derusting large volume, difficult to move, such as Dun Lei handheld laser derusting machine weight of about 150 kg. Equipped with 10 meters of optical fiber line, rust range is only 10 meters from the main engine range, high altitude operation needs to use the elevator, relatively not convenient. 
4, laser derusting scanning width is about 10-20 cm, derusting efficiency per minute one square meter, this derusting efficiency is not high, just a little higher than sand blasting derusting efficiency. But in terms of effect, laser rust removal is much better. 
Can laser rust removal become a mainstream process? I think so. Because all the advantages of laser rust removal can be expanded, all the disadvantages can be reduced. Laser is one of the fastest developing industries in the 21st century, laser derusting machine in just 4 years from 200 watts of power growth to 2000 watts, derusting efficiency is also in exponential growth, and the price of laser derusting machine is continuing to decline, once beyond a certain critical point, laser derusting will be a comprehensive outbreak, become the most popular derusting process.