Speaking as someone who, sadly, didn't develop breasts, I'll start by apologising if I may be commenting on something for which I am clearly not qualified.
Look at this page:
http://www.ftmguide.org/binding.htmlI honestly think you'll get as many different responses as people you ask and each will be weighted by personal aspirations.
If you think about it, this part of the body, like any other, needs a blood supply and it needs to move occasionally. Moreover, you absolutely need to breathe.
But remember, that the bra is a recent invention. Prior to the bra, women have been binding themselves since time began.
Hopefully, some of our FtM guys on here can give you some more reliable information.