The necklaces from the arena is in it's own league (raw stats).
It's not hard to get necklace from Entity or Thoth Amon. It's not hard to get cloak from Nativity or factions. There is also good accessories from Erlik, Caravan Raiders (Demigod), Sepulcher, unchained quests, and the world bosses. All these have similar stat budgets, it's not a huge groundbreaking difference. But take a look on AoC > TV and you see that the necklaces offered in rank 4 of arena traders is miles better than both T5 and T6 and that's not right.
All the time this game is a MMO, the best gear should be obtainable by playing in a team with others be it minigames, sieges, instances or raids.
Adding items that are unheard of compared to earlier levels of stats and making it single player only with zero replayability is really just... Stupid. And even by farming pets that you summon yourself, it is so goddamn boring and repetetive and got nearly no challenge at all, it is actually a bit sickening.