Thanks for sharing your experience.
I'd like to just clarify one thing please
> I went with "unmanaged" because I didn't realize there
> would a a limit that would only allow 5 text models to
> be created at a time
I do not enforce any such limit.
An unmanaged class account doesn't mean you can only create five text models at a time (and there are in fact thousands of class accounts with many more than five text models).
Unmanaged means you provide your own Watson API keys.
Managed means I sort out the Watson API keys for you.
If you choose to provide your own Watson API keys, this does mean you need to provide enough API keys to meet the needs for your class. And there are free ("Lite") plans available from Watson that can only be used to create five models at once. But that is an attribute of the API key you use, not something that I am enforcing, and not really because you have an unmanaged class account. It's just that IBM Watson has usage limits on it's API keys, and they won't allow you to exceed those limits.
Sorry if this seems like a pedantic point to make, but I didn't want anyone else to stumble onto this post and come away with the impression that there were limits on the number of text models in unmanaged class accounts.