One of the models I've been working on for peertube instances is a cheap vps using offsite storage. HD videos can quickly build up the gigabytes. $2/month unmetered bandwidth worked in early testing with SSHFS, but after reading a discussion on lowendbox I googled a lot and got peertube.red setup working with rclone and mergerfs which should provide way better scalability and performance. Just keeping the most recent videos local until they scroll offsite via cron job should cut down most of the wasted bandwith. Plus rclone seems to open up a lot more options for the offsite storage.