This is very early in the maturity cycle for this tech. The options that will be available for private inference and fine tuning, for cloud-gpu/timeshare inference and fine tuning, and for competing hosted solutions are going to vastly different as months go by. What looks like squeezing value out of OpenAI today might look a lot like technical debt and frustrating lock-in a year from now.
That's what they're hoping you chase after, and if your product is defined by this technology, maybe that's what you have to do. But if you're just thinking about feature opportunities for a more robust product, judiciousness could pay off better than rushing. For now.