Quote: "So which is likely to bring in more income: Selling games, media, or both? "
Both would obviously bring in more income for you, considering it would give you product on both the developer and gamer market. Though in my opinion (and experience), it's much easier to start making a profit
sooner rather than later by creating media and selling your assets here via TGC/Store rather than trying to market a commercial game. Primarily because TGC already delivers the web traffic to your product, and handles the sales/business end for the most part.
Long term goal or side goal would then be to create a commercial game while you're throwing up a few assets here and there to developers every now and then (my method anyway).
Quote: "If I sell games, how much would be a reasonable price?"
Depends on several factors such as the over quality, length, replay value, and etc of the game; and is most likely something you'll be figuring out
after your game is nearing the end of its development stage. Then you can compare your title with other titles out there on the same market you plan on publishing your game to (Steam, etc) and set a competing price.
Quote: "What about custom media?"
Take a look at the prices on the media uploaded to the GC Store to determine a competing price for your own assets in THIS particular market (the TGC community), or the model packs on the GC homepage.
Quote: "If you have experience, please speak!"
Done
Kravenwolf