The first questions to answer are:
Do you like decorating your house in ACNL? Do you like to change things up from time to time? Do you make it look like a home someone could actually live in? Or do you just scatter things here and there in a random mishmash?
If you like decorating your house, re-decorating, then you'll be doing that x300 over with AC characters/NPCs. You'll do some buildings like a restaurant, hospital, office, etc. You'll have more options available to you than the items in ACNL. But overall... you might have fun for a couple weeks to a month before you go back to playing something else. It's a game that's best enjoyed in spurts and it's not the kind of game that many people find themselves coming back to. I can't emphasize enough that you really need to enjoy decorating.