Mine has several purrs - the morning one described in the article, a huge motorboat one when both her ears are being massaged at once, and a special one when she toys with me - when I lean over the bed to turn on the fan, she jumps on my butt and purrs. I seldom have the heart to just relocate her.
She seldom meows, though, and it usually means a BUG has gotten in the house and must be destroyed. I actually saw her snatch a fly in midair with both paws, and she is de-clawed in front.