This, and while were at it, start embracing the community that successful games have built. For example, Company of Heroes - the original game didn't have DRM, had a unique twist to the typical RTS format, supported LAN and TCP/IP play, and quickly developed a mod community. Relic/THQ promised additional mod tools which didn't come out until just before the THIRD expansion, they changed to a peer-to-peer patch system which sucked, and they pretty well ignored the mod community while releasing patches which constantly broke the mods.
All in all, great game, but poor decisions on the part of the company turned a great game into something not worth playing any more.