Having a product mentor or advisor is like having a GPS for your startup journey - they help steer you in the right direction while avoiding those unexpected "recalculating" moments!
Having a product mentor or advisor is like having a seasoned co-pilot guiding your flight, helping you avoid turbulence and reach your destination efficiently.
If you have the budget, I think it's always worth it. After all, these people have more experience and expertise than you, so they can always help you. In the end, there's no such thing as unnecessary knowledge when you're pursuing a specific goal.