A few things come to mind after reading your questions. Note that I went through a very similar situation and in 3 cases went for the money. IMO, 2 of those c

A few things come to mind after reading your questions. Note that I went through a very similar situation and in 3 cases went for the money. IMO, 2 of those cases were a mistake on my part. If you like your current boss, coworkers, the work you do and the office I would stay. It is, in my experience, to find all of those positives in one place. Also of note, you'll be thought of as "that greedy bastard that keeps asking for more money" if you bring up the new offer. You'll have to resign and tell them your reasoning at that point... But they'll still have the greedy bastard impression and any reference you get from them will likely be tainted.