You're attempting (and failing) to belittle a company which just sold for $200,000,000. They clearly had very broad appeal.
Sorry you're feeling a little jealous. Try not to let it show so much.
If you can appeal to the 10-12 year old market you appeal to the whole world. Because who, really, considers themselves older than 10-12 on the inside?
My whole dorm played their games when they were iminlikewithyou.com. My friends never thought the name was childish, and it went with their cute art direction.