I bought my last pair blind and based on a recommendation and not looked back. There wasn't even a review online to read to give me an idea of how they would sound.
I have, though, had mixed results in the past. Bought without auctioning and either loved the speakers or hated them. Listened to speakers at a dealers and loved the sound only to get them home and not enjoy them at all.
This is why if you buy right (right price mainly) and stick with the better "brands" you don't lose too much if you have to move on.