What do you care about in this hobby?

Sound quality first, aesthetics 2nd. Value only matters to me when 1. I can’t afford it anymore, and 2. clearcut cases of misplaced expense - i.e. obnoxiously bad engineering / design; ostentatious chassis; misguided product philosophy. 

The others categories matter to me about ZERO. Measurements can be a curiosity & fun read, but I treat them largely as a separate pursuit, with little overlap to listening.

For service and support - keep in mind so many hifi companies are "1-man shows", or close to it. Usually, the proprietor is OLD. What do you think the landscape is going to look like in 10+ years? The only service & support you can count on is having gear with (mostly) replaceable parts that can be reasonably worked on by other technicians. That, and get some spares for the parts that are hard to replace (drivers). You DEFINITELY want your key components to be known to known reliable units. I know my Tannoys are tough as nails because I've had several "oopsie" momemts with them over 15+ years, and they've come out unscathed. 

The Mystery. It's what keeps me interested.

The physics is known but perception is not.

@mapman - how are all 8 of them for you if the first one is 'Sound Quality Only'?

If we remove the 'Only' from that, for me, it would be 'Sound Quality', 'Overall Design', and 'Aesthetics'. The others come into play as well to some extent except for 'Measurements'; don't care much about those besides seeing what will drive what. 

1. Enjoyment.....

....which happens to put sound quality on a budget at a premium.  WAF and pleasing aesthetics never hurt.  

SQ and aesthetics. 

I have an open area where my 2-channels is located. For various reasons I’ve really tried to integrate the system into living space so that it doesn’t bring too much attention to itself.

For me, it’s more than just the components, but the way in which the system contributes and interacts with the living space both acoustically and aesthetically during the day and especially in the evening.

Service/support and value (used market) should probably be much higher if I were to be completely transparent with myself, though. And enjoyment per knotscott. Enjoyment would definitely take the cake if it were one of your options. Otherwise why bother?