Haha, thank you, apoisonedgift!
The submitted price is $14.99. Even though the final system is WAY more complicated than I originally intended, I also wanted to make a material pack that was affordable for everyone to use. There’s so many different uses for this type of system, I’m sure most people will find something that makes the cost worth it 
Now, I do plan on making more assets and selling expansion packs if this thing really takes off, and I already have ideas for improving the shader beyond this, but if it doesn’t sell enough, I have other projects on mind as well. We’ll see how things go