There have been multiple requests for a lot of things. Few have gone through. I mean, it's not our video game. It's theirs. They can do whatever they please and if you disagree- go make your own text based mmo that's stayed successful this long.
I'd prefer to see ideas in forums that have been suggested time and time again instead of some of the spammy crap that fills AT these days...
Perhaps they should include things you receive from EBs or wars and you save them up and when you have enough you can spend them on a box type thing and when you open it you get something random.
What you have described is from most events where after an eb you can get an item (last one was icon of agony) your purchase something 5000 gold or 10 nob and you get usually a pretty crap rewards like the items and 20 of them.
No, not the roulette!!!! more stuff, more lag. they already put the roulette in pimd and iy made the lag bigger so no support.
If this idea is about earning nobs, then why do people keep trying to sell it wrapped in the quest feature? If you want to incorporate nobs into an existing feature dont choose something no one wants to use.