Elvis wore the full Gold Lame´suit for the first time March 28, 1957 in
Chicago.  He wore it again March 29, 1957 in St. Louis, and he wore
it the third time April 2, 1957 in Toronto.  In between these shows and
after he would wear the jacket and shoes with black pants. It wasn't
created exclusively for the Toronto show.

He did not care for the suit.  It wasn't heavy, he just didn't like it.
My guess would be that he thought it was "too much"...if you can imagine! :)

Fan Relations Dept.
Graceland Division
Elvis Presley Enterprises, Inc.
fan_relations@elvis.com