My opinion is that you should keep the bow you have now.
1) To many people have sold their switchbacks and regretted it.
2) You are newly married so you might want to think about holding as much of your cash as possible.
3) The improvements over your current bow are not worth $500 that you will be paying out.
4) Wait until next year and get them cheaper. bow season is already a month in.
Opinions are like a$$holes every one has one and they all stink.