[Malcx]

It doesn't quite meet your criteria for start today, but the Open University, a well respected "virtual uni", has been running in the UK for over 40 years.

http://www.open.ac.uk/

Fees are a little higher but only marginally at around $8000 per 120 credits for international students. (A typical degree requires 300-360 credits)

Many degrees can be completed over 7 or more years if it's convenient. But I think there is a minimum time as some coursework is assessed to a schedule.

So there is definitely a market for this type of learning, and competition almost always benefits the customer, so good luck!

[padwiki]

OU was a big inspiration for us. The bar we personally use is building a system designed for Silicon Valley. Pacing and availability are critical, as is maintaining a very high standard for classes. Right now, OU doesn't meet either requirement. (their SE program, for example, is little more than a few intro to Java classes and some SE theory)