These kind of things make me so mad!!! I would fight the VA on this if you feel there is a better treatment or they are not acting in the best interest of your husband's care.
See if the MM specialist who recommended the stem cell transplant would write a letter for you to use and appeal higher up in the VA on behalf of your husband.
Check out http://www.myelomabeacon.com/forum/barlogie-rajkumar-debate (there are 5 parts to this debate) and ask if the VA Dr. would at least listen to it and reconsider your husbands treatment.
I would also get in touch with the International Myeloma Foundation and see if they can help you: http://myeloma.org/
You may also want to get on the http://acor.org site under the myeloma group and ask those who are currently being treated through the VA if they can help you or have a recommendation.
There are also other chemos if the Revlimid is not working.
You will have to be a squeaky wheel on behalf of your husband.
Cary
Caregiver of beloved hubby, Terry