The cost factor in both electrolysis and laser hair removal actually depends a lot on factors like area where hair should be removed, the length of the session of treatment, number of sessions required to remove the hair and the cost of each session
In comparative statistics the cost of each session of electrolysis is less than laser treatment for hair removal. But electrolysis is a lengthy process and the cost would amount to a huge sum for complete removal of hairs from the skin. Thus electrolysis can result in heavy burden of costs on customers if the sessions are really longer. Therefore from cost effective side too the laser hair removal is better choice. Though the cost of each session of laser hair removal is little more than electrolysis but you can get rid of hairs at fewer number of sessions.