The industry of Custom Computer Builders is a curious one. Navigating the landscape of an industry that is characterized by a high level of specialization and technological know-how necessitates an in-depth analysis. It is an ecosystem that comprises manufacturers, software developers, retailers, and most importantly, the end-users who are the main drivers of the industry's evolution.

Let's commence with the "what" of the situation, the product itself. Custom-built computers are not your run-of-the-mill desktops that you purchase off the shelf. They are tailor-made to suit the specific requirements of the user. A custom computer builder starts with a thorough evaluation of the user's needs, whether it's for gaming, graphic design, video editing, or any other intensive computational work. The builder then chooses the most suitable hardware components, such as the processor, graphic card, memory, storage, and cooling system, based on the user's requirements and budget. The flexibility to choose every component makes custom-built computers highly sought after by tech enthusiasts and professionals.

Now, let's shift our attention to the players in the industry. The key players are the builders themselves. These are usually small to medium-sized enterprises that have a strong understanding of computer hardware and are adept at assembling computers. They are the cogs that keep the industry's wheels spinning. Then, we have the hardware manufacturers like Intel, AMD, and Nvidia, who continually innovate to produce faster and more efficient components. The software developers, including Microsoft and various open-source communities, provide the operating systems and applications that run on these machines. The retailers, both online and brick-and-mortar, provide a platform for the builders to reach the end-users.

The 'where' of the situation matters significantly in the Custom Computer Builders industry. The industry is primarily concentrated in technologically advanced regions, such as North America, Europe, and East Asia. These regions have a high concentration of tech enthusiasts and professionals who require high-performance computers. However, the industry is rapidly expanding into other regions, thanks to the growing tech literacy and the rise of e-commerce.

The evolution of the Custom Computer Builders industry is fascinating. In the early days of personal computing, building a computer was almost a necessity, as the pre-built options were limited and costly. However, with the advent of mass-production and economies of scale, pre-built computers became the norm, and custom building was relegated to a niche market. But in recent years, there's been a resurgence of interest in custom-built computers, driven by the increasing demand for high-performance machines that can handle intensive tasks such as gaming, graphic design, and video editing.

The 'how' is an area that invites much speculation. The rise of the custom computer builders industry can be attributed to a convergence of several factors. Advances in technology have made it possible to build powerful machines at home. More importantly, the internet has democratized access to knowledge, making it easier for people to learn about computer hardware and assembly. Online platforms like YouTube and Reddit have thriving communities where people share their builds and knowledge, thereby fostering a DIY culture.

Finally, let's delve into the 'why,' the raison d'être of the industry. The industry exists because there's a demand for custom-built computers. Tech enthusiasts and professionals prefer custom-built computers because they offer superior performance, flexibility, and value for money. They can select the best components for their specific needs and budget, instead of settling for a pre-built computer that may have unnecessary or sub-par components.

The custom computer builders industry, in essence, is a reflection of the larger technological landscape. It is a product of our times, shaped by advances in technology, globalization, and the democratization of knowledge. It may be a niche market now, but as technology continues to permeate every aspect of our lives, the industry is poised for substantial growth in the future. The key lies in continual innovation, understanding the changing needs of the end-users, and adapting to the ever-evolving technological landscape.