My biggest problem is that the functionality of the plug-in isn’t well communicated. I have to go to the Marketplace, select the plug-in, scroll the display down to reveal the Documentation link in the bottom left corner and then click it to go to this:
https://docs.coronalabs.com/plugin/CoronaSplashControl/index.html
Also, the documentation should carefully explain how the scaling is done. Is aspect ratio preserved? Is it stretched to fill? Etc. Some of us have carefully built our own splash screen modules to deal with different use cases and I’d like to fully understand how the new plug-in works before using it (for any purpose other than disabling the Corona splash itself.).
In summary, make the features more obvious (in the plug-in summary in the Marketplace) and add more details to the documentation page. Please.
As for charging the $99, it’s a one time fee (usually something a client would absorb) and a very fair exchange for the VALUE of Corona itself. I want Corona Labs to prosper and now that they aren’t a cost center for Perk, they need to make revenue. This is an incredibly reasonable way to do so IMHO.