news As new cannabis vending machines hit the market, challenges remain Published 6 hours ago | By Solomon Israel An Anna cannabis vending machine in action at a Star Buds dispensary in Aurora, Colorado. (Photo by Christa Madrid) Key challenges for marijuana vending machines include: Regulations that favor human oversight of cannabis transactions. Technical challenges that include integration with point-of-sale systems. Limited product capacity, potentially reducing selection. Costs that might make cheaper throughput-boosting solutions more attractive.