Adventures & Hobbies have all the Reilly Associates products available at around $25 a pop. Cloud Castle is $28. They seem to come to market quite a lot. Often signed, although I don’t think I’ve seen a signed Cloud Castle yet.

Put it on eBay. Buyers there for the most part do not check online retailers, and if they are already buying something else it’s always worth throwing in a bid to fill a hole, or satiate one’s curiosity. You may get upwards of $40 for it.

...

Maybe this is one for our friendly Wilmark muppet to buy out all the old stock and mark it up to $150 a shot once he thinks he’s ‘added value by saving these rare items’ and for just $150 you too can buy in to his magnanimous and most galant of gestures for our hobby. What a wonderful fellow he is.

It was well typeset as I recall. They used all the tricks of the age, like paragraphs, straight lines, equal line spacing, columns, etc. Even grammer!
The result is a body of text that feels quite professional (for the time), compact and/or succinct.

A vast depatrure from the diuretic slurry of words and scribbles used by Wilmark Dynasty to get their thoughts onto the page.

Sir Kill Alot wrote in Journey to the Cloud Castle:let it go

We've been playing humanoid races for too long to go back now. A true dwarf of Durin's blood never lets it go!