Whether you should purchase a pre-assembled fishing rod or build your own will depend on your personal preference and experience level. Pre-assembled rods are convenient and easy to use, making them a good option for beginners or those who don't have the time or resources to build their own. Building your own rod, however, allows you to customize it to your exact specifications and can be a rewarding experience for those who enjoy tinkering with gear. It's important to consider your budget, time constraints, and skill level when deciding whether to purchase a pre-assembled rod or build your own.