i'm assuming that success in this thread is refering to career sucess and not some hippy, self actualized notion of sucess.
there's not right route, it depends on what you want to do, the only common thread is busting your ass and that generally sucess takes time. if your going to go the college route then think it through and make sure that the career path you've choosen makes sense for the amount of debt that you will take on. these things are easy to research with the internet, take the time to make sure that you will make enough money to make it worth while. my litmus was that i wanted my starting salary to be higher than my total debt which i think is reasonable.
if you're planning to get there by working your way up then get out there, get your foot in the door and hustle like BB suggests.
and if you want to do your own thing then get a business plan together and start your own business.
but i agree with notorious 100%, it's easy to say money doesn't matter when your by yourself, for me there were definitely times that it didn't matter, but do you really want to force that lifestyle choice on your wife and kids if you decide to go that route with your life? if you are planning to have a family then i believe it's a man's responsibility to plan to provide in one way or the other. also there was a point for me where the fun and freedom of being a broke student started to feel more like being poor and i just wanted more out of my life than that.
my industry allows sucess in both ways as grim pointed out, although some jobs do require BS in either computer science or engineering a lot allow for "equivelent experience".
i personally took what i saw as the easy and fun route and if i had to do it over i'd definitely take the college route again but i'd probably try and finish a little quicker but maybe not. that shit was really fun for me but i've always enjoyed learning and slutty bitches and college has a lot of opportunities for both.
i mean do you really want to say no to this life experience?