Of the components in the system I put together about 15 years ago, the Jadis JA80 tube monoblock amps are priceless. They are still with me. They have survived the major upgrading my system has gone through in the past 2 years. Amongst my new components, the APL Hi-Fi NWO-2.5T CD player is the stand out. Along my upgrade path, it did more to bring me closer to live music than all other components combined. It, in synergy with the rest of the components, has brought Musical Nirvana. The remaining upgrades are also expensive and are well worth it: Kubala-Sosna interconnects and speaker cables, Elrod Statement power cords, Sound Application RLS AC conditioners, and Critical Mass Grand Master isolation/damping platforms. I am now in the middle of implementing Rives' room treatment design for my dedicated listening room. Its shaping to be priceless.