I recently made a setup change on one of my basses that breathed new life into it.
It's great, I knew it was a great instrument but it just seems to reward playing it- I've had it and played it for a year and I've still got more to learn about how it reacts, how it sounds in certain positions and right hand attack styles.
It made me think.
My main bass I had for about 3 years, stuck it up for sale on here a few times too, before I fell in love with it.
I wonder for a lot of us if we don't spend enough time with new gear before deciding to move it on?
(amps are a whole another thing, with even more knobs!)