1) fear of getting locked out of Airbnb. I stayed in an Airbnb in Dublin in late 2017, place was OK, not too great -cheap ikea bed, cheap ikea couch, heater that was either tundra or Sahara. However getting in to this place required memorizing 8 digit number or having your phone on you. After that stay I genuinely appreciated 24hr staffed front desk where you can get a new key pretty much instantly.
2) a safe for your valuables (passport) and daily house keeping.