In recent years, I've done it very carefully after a lot of reading and listening, to try to put together the best sounding system I could with a reasonable budget.
Having done that, moving forward I am more likely to just try different things when I can for whatever reason I choose. Something different, something with the right aesthetics, whatever, just to see. But I won't buy anything that I don't think has a good chance of sounding really good in its own way.