This need for beating the competition is bought by sacrificing quality. The engineering work is often completed after the product is already on the market and products with incompatibility issues are never recalled. They wait until the customer experiences problems and then offers to repair them. They use cheap, often no-name brand peripherals in their machines to keep the profit margin healthy. As a support engineer I saw modems and video cards replaced at a horrific rate simply because they were poor quality to begin with.
Monitors are also of questionable quality.
In the past two years Quantex has begun shipping their own brand name monitor unless a customer wants to pay extra for a name brand monitor. Technical support wait times are long because most technicians have little knowledge of the technology they are supporting. The team leaders are the ones with the background and knowledge and they are few in number. There are many technicians who don't even own personal computers and learn everything they know on the job. Quantex is still a good buy as a budget machine but don't expect real quality.