1) The divided sections help me pack a balanced meal.
2) The portion size is just about perfect for any appetite.
3) They nest together for storage.
4) They are very affordable!
5) They are super durable!
6) They make it easy to pack a lot of lunches at once.
7) They come in great colors. 
8) They are really versatile.
9) Simpler really is better.
0) They work great for kids of all ages and abilities.