A custom home has a lot more value than a normal production home. Even if you want to sell the house later on, it would be a lot easier to sell a custom home than a production home and you would also get a very competitive price for the resale. Building a custom home is a lot like handcrafting and the builder is more of an artist than an engineer.
The location of the home makes all the difference when it comes to a custom home. No matter how well the home is built, if it is not in a prime location, then it is a waste. Building a custom luxury home in a city like Las Vegas is a big deal.
The plot of land for the construction of the home should also be big enough for the home. It is very difficult to build a high end custom luxury home on a smaller plot of land.
The builder should always use premium raw materials for the construction of the home. It is not at all advisable to compromise in this regard.