Hiring a Delphi developer can be beneficial if you're dealing with legacy systems. They have the expertise to maintain, upgrade, or integrate these systems effectively and securely. Delphi developers understand the intricacies of the language and can ensure smooth operation of your existing software. They can also help transition to a newer technology if needed, making the process less disruptive. Their specialized knowledge can be a valuable asset in preserving and enhancing the functionality of your software, assuring business continuity, and potentially saving costs related to system failure or data loss.