Labyrinth and Syrcus Tower...

[LaylaTsarra]

Yeah or they need to adjust the system so that you simply cant queue for the roulette if you dont meet the ilvl requirement for all duties of your level...

Nope the reward should be worth the effort. Don't buy your point of view. You can get all up in a tuff about it but if the reward isn't worth the effort people won't do it. Pretty simple.

Efficiency. There's a minimum and a maximum priciple.

Minimum priciple: Get a fixed reward with as little effort aus possible.
Maximum prnciple: Use a fixed amount of effort to gain a reward that's a big as possible.

Since the reward in roulettes is fixed and the effort is variable, the only reasonable thing to do is minimizing your effort to get the fixed reward.

Now if all Raids took the same amount of time, but the rewards varied, people would jump on the one that grants the biggest reward for the fixed effort.

Yes and this point of view has been expressed in other threads like this as well. It's not going to happen unless the rewards make it worth the time and effort as was done with Main Story. Perhaps with the new 80 level raid we'll see a 50/60 Alliance and a 70/80 with appropriate experience awarded for the effort.