I have a two year old daughter so here's my two cents. SNG's and MTT's are lots of fun for some people but they don't work well with babies/toddlers. You are unable to put these things on hold if the baby wakes up when you are playing at night after the family goes to bed (that is when I get the majority of my playing in). It sucks to be big stack in a SNG only to hear a crying baby with a dirty diaper. Then to weigh whether playing your kings is as important as attending to her, after all, its only one more minute. I don't begrudge anyone that needs to play that hand and then gets her, but I think of how much I'd hate to crap myself and then deal with it. Ring games on the other hand provide a lot of flexibility in that you can always sit out/leave until you are able to play again.