Hi,
I say "go for it". I just do enough to stay active, so I'm not making any money, but I keep my sanity by having an "outlet". I have a 2 year old and another on the way in November, and there are all of the other responsibilities of life like family, church, friends, etc. I always tell people that you just make time for things that you like. I love stamping, so I make time for it. I was an elementary teacher before I had my 2 year old, and I missed the interaction with adults. Stampin' Up! gives me that back. Once you are into it more, you can decide if you really want to make a go of it. If you decide that you don't want to make it rich well you can just have fun. You lose nothing, but you gain many stamps and accessories.