I like the Sleepy Poet, but fear that it might be a little too big for its britches. I've frequented a variety of antique / second-hand stores in the past few years and found much of the inventory to be overpriced compared to what I've seen in stores and/or online for the same kinds of items. I do think that it has some great deals to be had, but the sheer size of the place could overwhelm even the most seasoned antiquer, making it difficult (and arguably not worth it) to wade through everything it has to offer just to find a couple gems.
It's obviously quite popular, and so my guess is that lot owners pay a premium to showcase their items here...which they oh-so-graciously pass on to us, the consumers. I'd love to find a more out-of-the-way, less popular antique store that hasn't jacked up its prices, despite the fact that the Sleep Poet is so conveniently located to me. Until then, I'll probably waste a few more hours here perusing the never-ending aisle, even if all I do is window shop.