I wouldn’t because chances are you will move again in 5-6 years (if you plan to have kids). Not many moms are happy (or stay happy) raising kids with no yard and so much stairs (and less playmates or other services). If y’all don’t want kids, ask her opinion and weigh it 10-25% based on your relationship. The rest is up to your personal preferences. Outdoor space is nice when someone else sweeps it and keeps it clean. If you go out only on the weekends be prepared to clean before you use it almost every week.