WCW Starrcade was THE event before there was ever a WrestleMania and it set a precedent. It showed the audience the idea of a SuperBowl type event in the world of professional wrestling. And I have no doubt that Vince took a cue from this concept and created an even bigger vision for the business by refining the Jim Crockett Promotion's (The forerunner to WCW if you knew your history there PhD, and had respect as a wrestling fan, you'd remember that it actually wasn't WCW that created this event) concept for a mega event.
With that said though, I don't think Starrcade has any room to exist on the PPV calendar, I'd love to see it back in some respect but with the big four still in existence and those stupid themed PPVs which do nothing but rip fans off and distract from the lore of the other four events, putting Starrcade on the PPV calendar would ruin the legacy of the event even more than what WCW did to it in its last year of existence.
On a side note there PhD, Starrcade is far from being mere "dead WCW shit" like you said, Race vs Flair, Piper vs Valentine, Flair vs Vader, Rhodes Vs Flair (Both 84 and 85), Flair vs Sting are all classic matches. Those matches made the event what it was and makes it one of the greatest events ever. While I agree that at this time a lot of fans in this modern day and age may not care about a long since defunct event from an organization that got assimilated into WWE, it's a far cry from being just mere "shit". However, I will argue that there is evidence that bringing back WCW events can work even for a brief time. The Great American Bash lasted from 2004-2009, obviously WWE to some degree could resurrect a former JCP/NWA/WCW event for six years. Especially with the Starrcade DVD being a successful release a couple years back. My best advice to you is to not underestimate wrestling fans, they might surprise you sometimes especially if Vince has a change of heart and reintroduces the event. While I would not bet all the money in the world on Starrcade being brought back, you just never know what WWE might do.