I've only been smoking for 8 months. For the first 5 months of those 8, I did all the fancy stuff. I quickly realized I was focusing on everything besides the actual cook - stupid, I know. Mostly out of necessity, I backed off the complexity and put all my energy into KISS. I don't think it's any surprise that over the last 3 months I've become a vastly better BBQ cook than before.
I think there's a time and place for both approaches. But as a general rule of thumb, I believe food should should speak for itself, whether it's meat or not.