Horn based loudspeakers why the controversy?


As just another way to build a loudspeaker system why such disputes in forums when horns are mentioned?    They can solve many issues that plague standard designs but with all things have there own.  So why such hate?  As a loudspeaker designer I work with and can appreciate all transducer and loudspeaker types and I understand that we all have different needs budgets experiences tastes biases.  But if you dare suggest horns so many have a problem with that suggestion..why?
128x128johnk
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I just ordered a pair of Klipsch Heresy lll......  a complete 180 for me but i'm looking for a sensitive speaker that is tube friendly.  Currently have a pair of Quicksilver Mid Monos, that I 'll never sell.... but I'd like to try building something like a bottlehead amp.   
Audio Visual Therapy in Nashua NH is the only Heritage dealer near me. They had Heresy Capitol and Forte lll on display.   Great guys up there , no tax.....  They have a lot of great speakers on display and the best headphone room I've ever seen
I have never heard any of the discontinued Palladiums, but I have noted that there have not been a single pair of any of them for sale on the used market in the US for months now...I've been looking. I think that says something about their desirability. 
I’ve posted a number of wanted ads for a used pair just so I can evaluate them but no luck. The owners must want to hold on to them.  My experience is limited to a P39F store demo in Quebec where they were a bit edgy but sounded very good. They wouldn’t be something worth recommending to suit the OP’s request.