I have an SGI Indigo in my basement because at work they figured out that a PC running Windows NT had better performance, so all the SGI workstations went into the dumpster.
A little while later, Apple released the G4 xServe. We bought 2 loaded with the largest disks at the cost of several thousand dollars. But hey, OSX Server. It has PHP & MySQL and is rack mountable, etc. We also used them for file servers for all the design files.
Got all of our development sites migrated over and the performance was noticeable worse. The HP was at least 4 times faster serving up the sites. It was amazing.