Why saline?

I dated a girl last summer with a great saline pair, she was a spinner, tiny, & while they looked fantastic they definitely had a stiff feel to 'em.

I can't say that I've been nearly so intimate with a silicone pair with there being so few around, but from what I understand they're more realistic for the touch test.

I'm back with naturals now for which I have always had a preference, but I love all titties regardless. I would assume you'd be well aware of all this, so I wonder why saline would be your choice.