There is a BIG difference, however, between the quality (and relevant 'worth') of RN-to-BSN programs. The "ADN" that's given to most RN graduates only requires 9 (or less) units of General Education coursework; they're not traditional Associate degree programs. These fly-by-night schools that offer you a "BSN" with only your ADN General Ed. classes, and then a handful of Nursing classes on top of it, aren't worth the paper they're written on. Also, these schools (Chamberlain, Kaplan, U. of Phoenix, Vanguard, and the other ones who heavily recruit to RN students while still in school) usually run classes consecutively, not concurrently (for instance, instead of taking 3 classes at a time for 16 weeks, they'll have you take one class for 6 weeks, another for the second 6 weeks, and the last for the third 6 weeks). They usually cater to people who want a BSN - fast and easy. They also charge around $500 a unit so you're basically buying a degree. Plus, even many employers
won't hire BSN's if their degrees came from one of the substandard programs.
This is alright if you only want a "BSN" to work at the VA, join the military, or work at a magnet or university hospital that requires a BSN as the 'title' is all that's necessary. HOWEVER, if you ever want to go further (e.g. Master's degree), these BSN's won't cut it. You will need a Bachelor's from a reputable university that requires upper division General Ed. classes (30-60 units) in order for you to get that BSN. Any school that doesn't require the same number of General Ed. classes as for a traditional Bachelor's, isn't reputable.
I know someone who obtained one of these "Diploma Mill" BSN's and, even though she has a '4.0 GPA', she now can't get into a Nurse Practitioner program other than ones offered by those same type of sham schools. Yale University (for example) won't even accept a 'BSN' for their RN-to-MSN program - you have to have a traditional Bachelor's in another subject on top of your RN.
So, forget the "quick and easy" route to Nursing education unless all you're interested in is letters behind your name. If you want a quality education that will carry weight in the future, stick with traditional programs and value "learning" over "letters".