Ten years and counting for me and VPN Unlimited so far. Unsustainable? Capitalism is un-sustainable. Cheaper than paying monthly or yearly? Absolutely.

Personally, I use the VPN to do my searches, grab magnet links, and get the torrent started, then I disconnect the VPN and switch to Cell data, as that ISP has never sent me a nasty-gram about pirating.

Reasonably sure Nord is still turning a profit on my sub.