Well I can see what Nintendo was trying to do. Some people just don't feel like paying more money for a 3D slider that they have no interest in using.(Either because of personal taste or their eyes get strained).
The no hinges thing works out great for people who have a tendency to break things. It doesn't look as appealing as the normal 3DS though.
The price should have been 119.99usd though. Adding the second circlepad would have been great too.
I might one after I get a vita, although that could be years from now.