What's an inexpensive, but SAFE option? I'm not sure where to start looking. Only requirements are :
1. that it folds up easily and compactly (to be stored when we're not there). We live out of state, so will be there a couple times a year.
3. Built well enough that it won't break in a year. This will only be used occsionally, since we live out of state, but we plan to have a large family (plus factoring in my siblings will start having children soon), so it will be used for many years
4. Price. Obviously we don't want to spend a fortune on something to be only used once in a while, but enough that it will last.