Hmmm, I don't own any anymore, but I've always thought them to be really neat aesthetic pieces.
Well, some are good for simple Matoran builds if you wanna make a decent-sized village.
It could be used for torso detailing. The asymmetry is a pain though.
In general, asymmetrical builds are just fine. I don't have a problem with 'em. But asymmetrical parts (that don't have counterparts)? Just...