When you are looking at paying for an expiring license or SaaS product, it is build versus Rent. And one cost of renting a product is that your vendor's business may change. Perhaps they get bought by Apple and the product is shut down, or maybe they just decide to go in a different direction. Or they raise their prices. Or the service isn't as good as you thought it was going to be. If you have done a lot of integration work (either in software or organizationally) you are either locked in or all that work is wasted.
This is addressed in the article as "risk".
The best way to balance this is to prefer buying/renting Open Source software. That way, if your vendor changes direction, or their service level drops unacceptably, you can choose a new vendor without losing your integrations. Or even switch to a self-supported model.
And any improvements you need, you can contribute to the project so that others can take advantage of them and share the maintenance burden.
This is addressed in the article as "risk".
The best way to balance this is to prefer buying/renting Open Source software. That way, if your vendor changes direction, or their service level drops unacceptably, you can choose a new vendor without losing your integrations. Or even switch to a self-supported model.
And any improvements you need, you can contribute to the project so that others can take advantage of them and share the maintenance burden.