Lack of tanks in the game

[JonBigwood]

as it stands now, there is ZERO reason for a level 50 to queued for daily low level roulette.

When you have capped your Soldiery tomes, you might probably want myth tomes for the alts or for upgrading weapons.

Since you can do each roulette only once a day, you may want to do the low level roulette if you have already done the others. In low level roulettes you have the risk of falling in one who lasts a lot with a mostly newby party, or maybe in one who lasts a short time with an exp party.

Edit: Now I think it a bit more, it's worth doing all the roulettes daily (even before you cap soldiery tomes), if you have available time. You can buy gear for the alts or save myth and go buying the items needed (if possible) for when you hopefully eventually have your atmas and need the myth for the upgrade.