I'd agree about NYC in that you may get better use of your time if you stick with a shorter flight...and won't be falling asleep over your dinner at 8pm! (Having said that, with the dollar as it is there's value to be had over there...and fantastic dining)
You can eat and drink well in cities all over Europe: Lisbon, Barcelona, Brussels etc.
You could also fly to somewhere like Paris and drive to a wine region such as Reims in Champagne in 1.5 hrs. Similar adventures could be had a short drive from Barcelona, Lyon, Geneva, Milan etc.
Using Thursday to Sunday you have a lot of options...look at aerlingus.com and you can check all their destinations for flight times and prices...same for Ryanair.