Chocobo racing is fine not being in DF since you get instant pops with the NPC racers filling in. LoV needs to be in DF, as who in the world wants to wait in a room for the chance at a match? I loved LoV stopped queuing because I had beastmen dailies to do, retainers/marketboards to check, quests to complete, etc.
All 3 mini games (racing, TT, LoV) would benefit from being on DF and cross server.
