Just my take, but....
As someone who dropped out after week 3 (yes, week 3) of Uni I think I can offer a fair insight.
Nearly 9 years after making that decision I do and don't agree with my decision. I did the right thing to leave that course and institution and at that time (Mobile Computing BSc, Staffordshire University, I wasn't 'ready' for the commitment) but the wrong thing in abandoning doing a degree.
I'm in a great position work wise, earn pretty much as much as anyone else my age whether they do/don't have a degree, but part of me is realising when I get the next couple of promotions at work done I'll find things a bit more difficult to move on. Trying to do a degree part time when at work, and at some point over the next 5-7 years hopefully having children too will not be easy.
If your going to do a degree, it needs to be the right sort of course (IMO, 'Pure' subjects like Maths, Physics, whatever) the right sort of University (A top one, or probably the Open Uni if your working at the same time as you don't really have a choice unless its a sponsored course like IBM offered at Portsmouth) , Resulting in the right end qualification (1st/2:1)
Thats my take as someone who has sat on countless interview panels, and died a little inside every time you get someone with a 2:2/3rd from a University that you never even knew existed, in a subject which it looks like they learned absolutely bloody nothing.