@Julz67 I'm not sure why you weren't offered the Herception and Perjeta at the same time as chemo.. I don't know your entire situation but Herceptin can cause heart issues, so if that's a pre-existing problem for you then that could be the reason.
If it's the TCHP he's talking about re the other treatment, I paid $6000 for the 6 rounds of Perjeta and $30 for each Herceptin infusion. I went through the public system and drew on some savings as private health wouldn't cover me. It is do-able, but can understand that it would be extra financial stress with a special needs son and in this current economy.
Remember YOU should be the one to make the final decision on your treatment as it's YOUR life. The medical professionals are the experts and we should trust them, but you know your own body and what's right for you. Listen to your gut instinct and please advocate for yourself!!! If I hadn't listened to my gut, we likely wouldn't have discovered the DCIS and that could have come back to haunt me in the future. If you would prefer a DMX, it's not too late to tell your surgeon. You have time.
Like I said, I don't know your whole situation, but at the end of the day, do what is best for YOU.