A texture image will weigh more on file size and performance than a simple material color.
But if you keep the texture image size to a minimum you shouldn’t have any problems.
Here’s a quick example made with @TIG 's Image Trimmer plugin.
Beer.skp (1.4 MB)
Experiment with it. Try making an array of, say, 2500 of each component; 7500 total instances.
I found the model still performs quite well. You may want to turn off the shadows first.
More about Image Trimmer in this topic…