Is it worth it to buy arbitrum?

Could you please elaborate on the question, "Is it worth it to buy Arbitrum?" I'm interested in understanding the reasons behind its potential value. What are the key factors that make Arbitrum a viable investment option? How does it compare to other cryptocurrencies in terms of scalability, transaction speed, and cost-efficiency? Also, what are the potential risks involved in investing in Arbitrum, and how can investors mitigate those risks? Thank you for your insights.