Getting the "bug" to upgrade can be expensive. Knowing what you "need" and filling that need is a different matter. A friend of mine once said, "the two most expensive things in life are vanity and impatience." I agree totally.
New Component Upgrade Success Rate
I like to try a new component once in a while when the upgrade bug hits. Cables, tubes, power cords, power conditioners, headphones, maybe even something major like a preamp or a DAC. I've noticed my successful adoption rate is pretty low and I usually end up returning the new component. About one out of every four or five attempts is a success. I'm batting about .200. What is your successful adoption rate when you try something new?