Riverside County co-living tenants are pretty price-sensitive, so I would not assume $40 lands cleanly without some resistance. I've seen rooms in that market sit longer the moment amenity fees start stacking on top of base rent, even modest ones. The coin or app-pay route sounds manageable until you're the one driving to Moreno Valley because the card reader is offline and three people are texting you at once. What keeps pulling me back toward the outright-purchase route is buying a decent mid-range pair, something like a $1,400 LG set when they're on sale, writing it off, and then rolling something closer to $25 into base rent rather than $40, because at that point you're pricing for wear and eventual replacement rather than profit on the amenity. The lease structure changes the whole calculation though, individual room leases versus one master lease, because with individual leases you lose most of your leverage to enforce shared-use rules and the machines absorb more abuse than you'd expect.