I think you're looking at it wrong. You shouldn't be comparing yourself to universities. Don't compare your prices, duration and accreditation with them. You should be building something completely different from the ground up. Something that is viable in today's world, not trying to bandage existing university models to today's world. Like pg said, build your own thing, if it's really good, it will eventually replace universities without you even aiming for that.
Personally, I think you should focus much more heavily on the accreditation side than anything else. Just try to build a certification system together with existing tech employers, something that they would sign and put a banner in your website saying "company X approves this certificate as important for our selection process". That would get early adopters interested. After you have that. Offer your classes for free, make those as widely available as possible. Charge for the certificate and one on one help with those who feel they need it to get your certificate. Well, that's how I think this universities will actually get disrupted.