To understand why custom neon signs are so expensive, you have to understand how they’re made. Traditional neon signs are made of long glass tubes; these are extremely fragile and are made by hand. Then they’re filled with gases (xenon, argon, krypton, or helium). All of this is time-consuming, the materials are expensive, and it’s easy to make mistakes.
That’s why custom LED neon signs are a fraction of the price of traditional neon signs–and they still offer that unique neon look.