As stated by the recent sales list at Afternic.com, SY.net has sold for $15,000. The buyer originally offered $3,500, but eventually settled with the seller at $15,000.
Just a few weeks ago Afternic sold a two character .com, EQ.com, for $100,000. (See EverQuest site paid $100,000 for EQ.com).
Other reporting from the domain desk.
Domain SalesExchange adds Dutch auctions — DN Wholesale3Domain Sales3 Firms That Still Want to Buy Your Domain NamesTDomain SalesTo the Auction Block — I.co Headed
Domain SalesMillions for Domain Seller — Mint.com MintsWDomain SalesWith domain name exchanges — The problemTDomain SalesTheRack.com, probably to Nordstrom — Marchex sells
Domain SalesNote: How to Sell Domain Names on Marketplaces
Domain SalesDomain sales led by €100,000 .ai domain — End user