a few points that come to mind. 1. 10% pay raise could probably be negotiated in your current job so that shouldn't be a big factor. 2. is there a longer term upside to the new position? that should be a bigger deciding factor than initial pay bump 3. by leaving doesn't mean you can't return to the original place. I've made the jump a few times, and almost always ended up working again with people i left behind. I stil seem to have a open invitation to come back to some of the places. 4. i like that i've developed new friends in each place, and do best i can to keep the relationships i've developed over the years. Some good people to be found in every place!
in the end, you're taking a risk by leaving a good thing.. I have overstayed my welcome in one place once because of this reason as well :)
in the end, you're taking a risk by leaving a good thing.. I have overstayed my welcome in one place once because of this reason as well :)