When you are considering investments that you will want to make, you will want to also consider the types of risks you are willing to take with the investments.
You will want to make sure that you are able to cover as much as possible and are able to get returned on everything that you are able to own.
If you want to stay for a longer term and pay off the home, then finding something like an interest first loan will work better.
By keeping up with your credit score, and understanding how it will tie into your investment, you can be sure to benefit from the points that you have.