Giving my old post a little bump in case anybody has any more words of wisdom to add on this. After surveying uke shops all over Oahu, and asking at the Kamaka factory, it seems like it's impossible to try one of these is person - the only way to get one is to place a special order.
While at the Kamaka factory, I fell in love with a little soprano pineapple. Except I don't really like playing sopranos. I am so, so close to pulling the trigger on the concert-neck pineapple... But I hate the "unknown" factor.
When I first posted this, I did get a couple PMs re: intonation issues and other problems with the concert neck pineapple, so that adds to my hesitation. But - I still think I want one