These cases are popular in the "retro PC" community. Because they used standard Intel boards and standard power supply units (PSU), they are easier to work on than proprietary machines from that era (like older HPs or Compaqs).
The series evolved quickly to incorporate the latest technology of the early 2000s. Early models like the started with 1.6GHz processors, while later high-end iterations like the vpr Matrix 253R pushed the envelope with: Processing Power: 2.53-GHz Pentium 4 CPUs. vpr matrix desktop
Today, the is considered a piece of "forgotten tech history". It is sought after by retro gaming enthusiasts and collectors who appreciate its unique design and the specific hardware drivers required to maintain its original factory functionality. These cases are popular in the "retro PC" community