Just a quick note about a listing I saw on ABE. The bookseller is an old friend of mine. His actual store (which no longer exists) was where I (or my mother) bought all my books growing up. He has a true 1st, 1st of "East of Suez" (1922) for $25. Excellent price!
http://www.abebooks.com/servlet/SearchResults?an=maugham&sts=t&vci=796033&x=70&y=11