my next HTTPS cert will be from DynaDot since I liked how they run their DNS registrar service (with optional API, yeah!) and generally got a "smart" vibe from them. I've gotten certs from VeriSign and generally found it surprisingly expensive, complex and slow. Fundamentally, a file needs to be generated. Generating that file should be pretty fast on a modern computer, and a commodity service. Yes there's some extra stuff potentially involved. But at it's core it should be a pretty simple and fast and therefore cheap process. IMO.