There's just one problem with the Warlords comparison... it's not true. Civ5 + DLC < Warlords. You're still missing the major gameplay changes. Warlords had vassal states, new traits, and the great general in addition to the new civs/leaders and buildings. Civ5 has... nothing to show in this area. Absolutely nothing. Civ5's patches only add a bit of new content compared to civ4's patches at best (yes, civ4 had patches). The only major new feature civ5 has seen (Hotseat) only affects multiplayer and was in civ4 out of the box!