Photos aren't really good source material for games. You can use them as a bit of detailing but with all the shaders and such games need different information than that contained in a photograph: The diffuse texture should be free of directional light (because there's dynamic lighting in the game), normalmaps must contain the structure of the material, ...
Even back when photos were used more often they still required significant cleanup, e.g. a wall won't be uniformly lit in real life but when you want to tile that texture it can't have notable edges.
That said, photos are often mixed into textures to add a bit more realism than what you can paint by hand. You can never just plop a photo on an object and have it look good though.
BTW, remember the "proprietary face scanning technology" EA had during the Gamecube era? That was mostly just feeding very noisy and practically useless data to their lead artist and having him make everything by hand anyway.