What is the X% of your product you're willing to outsource? What % of margin are you willing to give up for that capability? Because the hope/dream of every parasitic SaaS is to grow with their customers...
- You don't actually know if this feature will be important long term
- You have many urgent needs, the opportunity cost of waiting for "build" to finish is too high
- Your company is, for various reasons, unable to attract and retain the kind of talent who could maintain a system of this complexity (I realize this sounds like "we're not willing to pay market reates", I promise it's more complicated than that)