Not Chuck E Cheese specifically, although I'm sure that's coming.  I have had my kids' parties at places, but it hasn't been anything super-extravagant.  We've done things like our small local zoo, or a gymnastics place that does parties on weekends.  The problem with me is that there are a lot of kids in our playgroup, and now school, that all invite each other to their parties so there's sort of an obligation there.  I end up having the parties at other places because I don't want 15 5-year-olds running around my house.  That is worth the money to me.  I do make goodie bags but use just the oriental trading stuff and candy.  I haven't really felt like I was going overboard yet, and haven't felt any need to make each year bigger and better.  It will start getting hard to make it different, though, since we don't have that many options here in our community.