The global VPN market is estimated to be worth 23.6 billion in 2019 according to: statista.com
However, using a commercial VPN has one key disadvantage: You have to trust the company to not keep any logs or spy on you in any other way.
There are currently several projects in crpyo trying to tackle this problem with dVPNs, the idea is very simple, you can rent out or buy bandwidth/IP addresses.
These are the three main players at the moment:
Mysterium: already has a working testnet for windows, mac and android. I routinely use it on windows and android and it works well. They were the first player in the market. Based on Ethereum.
Sentinel: They have a working version on testnet for windows, linux, mac and android. Also works really well. They also offer nodes connecting to tor for outgoing connections and are currently testing multihopping. Based on Cosmos.
Privatix: They are an existing VPN company (privatix.com is their page for their "normal" VPN) and they plan to bring over all their vpn users to their dVPN. Also working testnet on windows and linux. Also based on ethereum.
All three of them claim to be the first dVPN, however I think they are on the same level, all have working testnets, so the one that releases to mainnet first is not necessarily farther than the others.
Also all three can tap the market for residental IPs, which are currently very expensive (luminati.io
dVPNs will be able to beat both commercial VPN providers on price (because of more efficient market) and residental IP providers on price by a far margin. Also Netflix, Hulu,... lock most commercial VPNs because they come from datacenter IPs, they will not be able to do this with dVPNs, as some of them will be just normal residental IP addresses.