has come up here before a few times (long ago) , always worth comparing rates

including for example these luxury hotels >

RC - atlanta , boston , chicago , cleveland , dallas , denver , ft lauderdale , los angeles , marina del rey , coconut grove , bal harbour , south beach , new orleans , central park , westchester , philadelphia , san francisco , sarasota , st louis , georgetown , washington , pentagon city , tysons corner , dubai IFC , tokyo

FS - baltimore , chicago , dallas , houston , vegas , westlake , palo alto , san francisco , st louis , bogota , buenos aires , london trinity

st regis - atlanta , houston , new york , san francisco , washington , florence , rome
MO - boston , miami , DC , taipei
peninsula - chicago , new york
rosewood - new york , bangkok
montage beverly hills
mark new york

seems to vary some year to year, dont recall if i listed participating hotels in a past year

presumably some hotels participated in past (but not anymore) when revenues down