how many tables are at the mirage? the chipguide shows 7 high roller tables. i'm not sure what a high roller table is in las vegas but in NJ it's usually in the hi limit pit, single zero, and $50 or $100 minimum.
last time i was in las vegas was mid- october 2016. picked up the blue one for dollars ($15 table) and the green was on a single zero table ($25 ,nickel minimum chip).