Thrift store baby shopping?

Kasey
What do you think of buying baby items at thrift stores? Clothes, blankets, etc. I went thrift shopping today and bought a few onesies but I couldn't bring myself to buy the pack n play or swing that I saw. There are some things I want to buy new. Would you or have you bought stuff for your baby at a thrift store? If so, what did you or would you get? What would you NOT get?