Choosing a White Label Restaurant Menu Costing Tool over developing from scratch entails several advantages:

1. Cost-Effective: Developing a software from scratch could be incredibly expensive. It requires a major investment in terms of funding, time commitment, and resources. This makes white label software a cost-effective solution because it's much more affordable and offers basically the same functionality.

2. Saves time: Deploying a white label tool takes far less time than developing a new software. Additionally, you can directly spend your valuable time on improving and growing your business.

3. Expert Support: White label providers often offer technical support and customer service as part of their package. This means if there are any issues, there's a team ready to assist, unlike when one develops software from scratch where they would have to address any arising issues on their own.

4. Regular Updates: White label tool providers constantly update their software to include new features, improvements, and to fix any bugs or security issues. You don't need an in-house team to keep the software up-to-date.

5. Customizable: Despite offering ready-made solutions, many white label platforms can be customized to some extent. You can often add your own branding, and you might be able to get custom features developed.

6. Quality Assurance: White label solutions are generally tested extensively by the provider before they're released, which suggests that you’re receiving a product that’s already been quality checked.

Overall, the initial and long-term costs, time involvement, and technical challenge of developing from scratch can be saved by opting for a white-label solution.