interactive destructible objects and meshes

did you think about them before? what are they good for? can they add value to your game's gameplay? are they good design tools? are they bad rocks that designers of AAA games hide themselves behind them?
I can not stop my creativity when i think about them. my imaginations go wild and i can not get it. you saw many destructible meshes in games developed with UE 3 but when i think about destructible meshes i don't think about rocks and wholes in them or braking stones and ... i don't think about war or anything action. did you think about a cooking game that you can cut onions in any way you like? i thought much about it. it's not completely possible but for many foods it's possible to use really random destructible parts. for some of them you should create meshes of complete grocery and also create pieces yourself.
however there are some problems in your way. texturing of destructed mesh in the way that you want is not always easy. think of a potato and an onion. if you try to cut them, texturing the internal parts of the potato is rather easy but what about the onion? is there any possible solution?
what about game performance? physx tries to do it's best for you and you'll not have any problem in a normal cooking simulator but a vegetable cutting machine with 5000 tomatoes is a different story. i think performance will not be a big issue because in most cases you don't need many rigid bodies.
there is another important factor. did you think of gameplay of your game? isn't it too hard to cut the onion freely? can you make a casual game with free destruction of meshes. a very casual game, i don't think so.
i think there are endless possibilities. using destructible meshes with project natal or wiimote adds much more to it. a cake cutting game? lumbering? oh maybe! tell me what you think. i added a feature request to feedback site of unity and want to invite you to vote for it.
http://feedback.unity3d.com/forums/15792-unity/suggestions/536687-destructible-meshes