for 150-200, i would grab one also. most on bay seem to be in the 350-400 range. i could still get one of those, and an earlier M as well.
Keep an eye on local (FB/CL) -- At $150-200 the 15" 2015 are tremendous value for what they offer, especially once you slap an NVMe stick in there
Battery replacement is also really easy if need be with a kit from Amazon