^^^^^
Main reason is having to wait so long to make 100% sure the check has cleared the bank for good. I've seen checks bounce after supposedly clearing the bank. I've also seen Amscott money orders returned NSF after clearing when they were purchased with a forged check.

USPS m.o.'s are like bearer bonds...same as cash to the recipient. I like them, cheap and easily verified. YMMV

Last edited by TallPine; 04/06/15.