Yes it is worth it. What path you choose is critical though. As someone who has recently gone back to finish a Bachelors degree and begin a Masters, I've changed my view on the education system in America, and the importance of a "brand name" Bachelors. That is where they get you. It doesn't make sense to go into massive debt for a Bachelors degree. There are enough quality online Masters programs available that simply require a regionally accredited degree with a decent GPA. It many (most) cases to enroll and be admitted to a Masters, it doesn't matter if your Bachelors is from a state school, a tier 1, or tier 4.
The Masters degree program at Harvard Extension school is completely open. http://www.extension.harvard.edu/2008-09/programs/ If you can take and pass three courses, you are in. There are 100's of quality online Graduate programs available, many from top 100 schools.
For those who have to go the traditional route, going to community college, then a state school makes sense. For myself, taking my 60 credits from 30 years ago, supplementing them with CLEP's, DSST's, Excelsior exams and Thomas Edison TECEP's http://www.tesc.edu/index.php made the most sense. I earned 72 credits via testing in a little less than 6 months, earned the regionally accredited bachelors and am now enrolled in a Masters program.
My two sons are about to go a similar route. They both have two years of community college experience. They both have good full time jobs. They will both earn the remaining 60 credits for their Bachelors by taking a few online courses and testing out of remaining credits. Total cost of the last two years of college for each of them will be under $4500.
I say bang out the Bachelors quickly and inexpensively, then concentrate on a Masters. There are 100's of quality online Graduate programs available, many from top 100 schools. http://www.worldcampus.psu.edu/ or if you are financially challenged and just want a regionally accredited interdisciplinary Masters, you can still do that for under $5500 here http://www.wnmu.edu/VirtualCampus/index.html