[markatto]

There are many SciFi titles that are extremely expensive in hardcover these days. There is a lot of amazon volatility, so I tend to use price watch sites, but some also consistently stay in the hundreds of dollars (for example, the original printing of Hyperion). I suspect that this is because the genre used to sell badly in hardcover and many SciFi fans have come into money over the last few decades, but I'd be curious to hear from somebody who understands the market better.