Given that you seem to (quite sensibly, imho) value quality of life more than career advancement (and for that matter, based on your description it sounds dubious whether this would really be all that much of an advancement anyway), it sounds like a no-brainer to stay where you're at for now. Other, better, more suited to you opportunities will come along in the future. Look at it this way -- if that better opportunity shows up next week, you'll be in a much better position to jump if you're in a job that you've been in for a while than if you've just started a new one recently. And if it shows up a year or two down the road, well, you'll probably have made more money and been happier in the meantime.