GA Russel,
price is very relevant, but usually I can't benefit from these bargain priced offers. I live in Brazil and a lot off online stores don't ship to foreign countries or only ship using couriers like DHL and Fedex what results (in Brazil) in taxes that double the price.
I bought the PRS-350 at borders.com. I paid US$140 for the device and US$8 for s&h. The total was a little less than what I paid for my JBL
I really don't understand that details like folder organization (or any type of organization) are missed in reviews.
The superiority of a Kindle or PRS-350 lies in some points. As a whole I preferred the JBL.
The lack of folders is a deadly sin that I will try to hack away what I know that is not safe (from what I read a bad xml file can lock the PRS-350) nor pratical, since I will do with some scripting in linux.
In fact, appreciating all resources I think that the JBL is a better ebook reader than the competitors considering a base price tag US$150.
The JB(L) is bulkier, uglier and uses an older technology but does it's primary function of storing and presenting books better than the others.
Unfortunatelly has some problems of engineering to overcome.
My advice: don't let it drop

It will give you a great job.
The PRS-350 is not a garbage, has advantages but was given an interface that is a POS, IMHO. Maybe for people that load only a few books or don't mind to do all the organization using a Calibre-like program, it is a winner. For me, no.