Congrats on your offer. It's exciting when someone shows interest in a name. With any luck the interested party wants it bad enough to make another offer. Though, I tend to feel you should have at least countered, rather than just letting the offer expire, especially if you were only looking for $950. It seems most buyers make a lower initial offer as a jumping off point or a way to break the ice. For many end-user or investors, that starts the bartering process once a counter has been made.
Incidentally, WSH in a simple Google search brings up pages and pages of Microsoft's Windows Script Hosting, Water Sanitation and Health, and Western State Hospital. It is also a company's stock ticker symbol, a Law Firm, and even a Hollywood movie made back in 1994. However, it was particularly interesting that nowhere in the several pages viewed was anything mentioned about Washington or even the word WISH, which it more closely resembles.
-Regards