You are very smart to be weighing the cost of college with the value you expect to get out of attending college. The answer to your question largely depends on your goals, though for some, articulating goals can be a daunting task alone. I have found that many people considering college are uncertain of what they want to get out of college, so if you are in this camp, I would advise that you take your time figuring this out before committing to $50k+/year.
That said, college is actually a fantastic place to "figure this out". You will be surrounded by others going through the same transformations. You will also be surrounded by professors/instructors who have made their career helping people discover themselves. I strongly believe that you do not need to pay a lot of money for this. Consider community colleges or local universities that may be considerably less expensive places to do this self-transformation kind of work.
On the other hand, if you know exactly where you want to go beyond college, and you know college is a necessary stepping stone to getting there, then it should be far easier to know if $50k/year is an appropriate dollar amount to pay to get there.