Is investing in a breastfeeding pillow a good idea? Is it really worth it?

Useful during our first two months, those times when I turned into a mombie. There were times that I couldn't help but sleep while he nurses using the pillow. But as he grew, he'd just slump deep into the pillow, plus the fact that he has his mood for some eccentric nursing positions. So right now, we don't use it anymore as a breastfeeding paraphernalia. My advice: still get one. It serves a lot of purpose. Pillow, aide for your baby's tummy time, pillow support for his/her back as he sits.