What would you do in my position?!

Current job don't make as much$ as I would like but have a great boss, I am salary and only work about 30 hrs/ week . Small company and I have a ton of freedom and make my own schedule. Boss is 60 and while not retiring soon, someday maybe I could be a part of taking over the company..
Job I just got offered is decently higher salary but large corporation with full 40 hour work week, no freedom, strict rules and guidelines. Definitely opportunity for advancement (climbing the slow ladder of positions/titles) 
I have no idea what to do. Love my job but would like more money. However my hours and freedom make current job sound better. 
Both have similar insurance/benefits. Don't necessarily NEED a pay increase but would definitely be helpful in wanting to start a family. 

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