Keep an old reference system to compare each new piec of equipment to;
If the upgrade that you are considering is not 10 times better (better tonal balance, better resolution, better sound stage, better depth, better bass, better high end, more nautral midrange, greater dynamics, ect., don't change or upgrade (this pertains especially to the silly prices for some of the latest audio gear).
If the upgrade that you are considering is not 10 times better (better tonal balance, better resolution, better sound stage, better depth, better bass, better high end, more nautral midrange, greater dynamics, ect., don't change or upgrade (this pertains especially to the silly prices for some of the latest audio gear).