An immediate annuity is a purchase of a stream of payments-- it may or may not be a good idea for you.

A deferred annuity is an investment vehicle that you may be able to turn into a stream of payments in the future. It is almost always a bad idea because it will have a complicated structure that will hide high fees, and even higher charges if you try to get out of it.

could someone explain to me why Annuity is never a good buy?