What are the disadvantages of I-beam?

Could you elaborate on some of the drawbacks or limitations of using I-beams in construction or engineering projects? Are there any specific scenarios where they may not be the most suitable choice, and why is that the case? Are there any safety concerns or potential issues with durability and longevity that need to be considered? Additionally, how do I-beams compare to other types of beams in terms of cost and overall performance?