Expert roulette gives, what, 195 gear? Gear so obsolete that you can replace it before you can farm a full set. It requires weaker gear, 180 if I'm not mistaken, to enter. But it's the fastest way by a huge margin to get the best gear in the game, rated at 230. That's 50 levels higher than required.

Why?

Doing an expert roulette each day is boring. I love doing dungeons, but I don't love doing the same dungeon every other day for a quarter of a year. I could get the tomes from other sources, but it would take more than twice as long to get the same amount as one expert roulette.

Better yet, why is tomestone gear so strong? The point of the system is to protect you from bad strings of RNG. Yet it's the only way to get gear. I should be saying "Oh, I did Alex all night and haven't found any gear. But at least I have enough tomes to buy a new item."
Instead, I'm kicked out of parties because the previous raid's gear is obsolete.

This whole system is a mess and un-fun. Just let me do the fun content of the patch and reward me for that. I don't want to grind the boring things just so I can keep my gear up-to-date.