The issue with your statement is that the roulettes often force you to do the same dungeons and its been like that for years...
Please don't give me the excuse that you still find those dungeons as exciting as you once thought they were many years ago when you first played them.
I must have done satasha like 200 times allready... so no it's not easy to keep doing the same dungeons just to get those tomestones.
Another sollution would be that SE changes the maps for roulettes