I have just recently tried out a second hand pair of Future 2's and was amazed by how good they were. While it's true that they look a bit strange there's nothing strange about how they sound which is nothing short of phenomenal. As to why they haven't hit their stride I can't say. The F2's cost a serious packet when they were new, perhaps more than 20k USD. So perhaps that's part of the reason. Another reason could be that they are a finicky product requiring just the right components to operate at optimum levels. Still, while in the shop we sampled the JMLab Nova Utopia Bes with Omega amps to boot and the difference was immediately noticeable. All the dimension, ambiance and clarity was washed straight down the pipe. The JM's sounded like a sick dog compared to the F2's. Sorry but that's just how it was. So, the JM/Omega system must cost upwards of 50k and sounded tight and sad. The F2's hooked up to a Counterpoint SA-5000 and Sonic Frontiers Power 2 Amp easily bested this pricey field. I'm just happy there's still a pair lying around for me.
JME
JME