For a new project I'd like to get a .io domain (it's a domain hack, because the word is ending in io, kind of like scorp.io or b.io )

Registration fees on .io domains are pretty high though, and according to RegRates.com the cheapest registration costs $39/year at Gandi. They only have 7 registrars on the site comparing .io domains, so I was wondering if anyone here knows a better place thats maybe not on regrates? Also does anyone know if there are restrictions for owning a .io domain?...

Cheapest place to register a .io domain?