Replying to Should I Buy Pow Skis

I just moved to bozeman from maine and have a pair of 181 icelantic nomad rkrs to use a one ski quiver type deal. They are my favorite skis I've ever ridden but they are a bit short, since i am 6'1'' 185 lbs for deep days. I have found a bunch of people selling their pow boards in the area and am looking at 2011 benchetlers 183 w/ bindings for $250 or 2014 fatypus d riddem 188 for 250. Should I go for it? Is it worth having one bigger pair for the deep days?