One of the nicest things about this particular win is that NY-23, at 13,200 square miles, is the fifth-largest district east of the Mississippi. The four bigger eastern districts are ME-02, MI-01, WI-07 and WI-03, all of which are already held by Democrats. So this is the biggest swath of bright blue we're going to get to paint on this side of the Mizzip. Congrats, Bill Owens!
P.S. This is the sixth special election in a row that Dems have flipped from Republicans. Our streak began at the end of a GOP streak of five straight from 1994 to 2001. (Before that, according to Wikipedia, the longest streak appears to have been the eight seats the GOP flipped in succession from 1976 to 1980.)