I wish they had some "race to the bottom" price option for small side projects, with free custom domain and letsencrypt support. Something to compete with the $5 VPSs (soon to be the $3 VPSs).
Right now I rent a large server to host multiple things because I don't like the limitations of their free tier. There's something very elegant about having all your "apps" isolated and with their own settings but the price must be just right. I really enjoyed using Heroku (for a client) because maintaining my own servers, even for hobby stuff, feels like such a waste of time.