The problem with many RTS games from a longevity standpoint is that most RTS fans do find them at some point, they play through the single player campaign, and multiplayer is either stagnant/busted/a mere shadow of the actual singleplayer campaign/has lousy game cycle/no useful replay system. I feel like too many of the recent generation of RTS games have fallen down these paths. People always need to keep in mind when thinking about SCR/BW one of the tricks to making it competitive was running the game on the fastest speed to make it interesting and fix the game cycle. Most of the newer RTS's often do not expose such interesting knobs to help find the competitive mode in the stock game, or are missing map editors and other tools to help create new content for a game and fix perceived problems for multiplayer within the confines of the shipped game.