Well, the Godaddy Domain Valuation tool puts its value at $1,056. The reasons they gave are:
Comparable domains sold:
stayingcool dot com $1,088
staygroovy dot com $899
somethingcute dot com $299 Stayingfit dot com $9,997 stayingstrong dot com $1,888 stayingsharp dot com $4,000
Valuable keyword: staying is a high value keyword that has an average sale price of $1863.