As a Spurs fan, the most significance I give to the Regular Season (apart from making it to the playoffs in the first place) is to get Home Court in as many rounds as possible.
Miami made the most out of that HCA last season winning both games 7.
If we have to face Miami or Indiana in the Finals I would love for the Spurs to have HCA against either of them.
If/when we meet any of the other strong Western Conference teams I would love for the Spurs to have HCA (yes, even when right now they seem to be playing better on the road).
Of course I would love for the Spurs to be winning these games against the other strong Western Conference teams but I don't think it is that big of a concern right now as long as we can stay at the top of the standings.