Cheap, we ain't. I would say the least expensive would be the Garrison
www.garrisonlodge.com a couple miles below MRG. Also on Rt 17 is
www.hydeawayinn.com. Also economical but further away would be Slide Brook Lodge- get a shared bath-
www.slidebrooklodge.com and Golden Lion Riverside Inn
www.goldenlionriversideinn.com is an excellent value, clean. But again, a bit further from MRG.