1. Tool Collection Size: If you have a large collection of tools, a tool cabinet can help keep everything organized and easily accessible.
   
2. Storage Space: If your garage, workshop, or home has limited space, a tool cabinet can offer a compact solution for storing tools, keeping them out of the way but still within reach when needed.
   

3. Tool Protection: As you mentioned, a tool cabinet protects your tools from dust, debris, and moisture, which is crucial for maintaining their longevity and functionality.

   
   

4. Convenience: Having a dedicated workspace on top of the tool cabinet can make it easier to perform tasks and keep your workspace tidy.
   
5. Aesthetics and Safety: Tool cabinets can also improve the appearance of your workspace by hiding tools away and can reduce the risk of accidents that might occur with tools left lying around.
   
6. Portability and Mobility: Some tool cabinets come with wheels, making them easy to move around your workspace as needed.
   
7. Budget: Tool cabinets can vary widely in price, so consider how much you are willing to spend and what features are most important to you.
   

If you find that you often struggle to find specific tools or if your current storage solution leaves your tools exposed to elements that could damage them, then investing in a tool cabinet might be a good idea.