I wouldn't agree.
In the short term, and if you don't have any other male mutations, it may seem that way ... but long term, making rare combinations by crossing a morph male with different morph females has far more "value".
I have a ton of morph males, and can't get enough morph females to breed them to. It's far better to breed a single male mutation to 5 female mutations than it is to 5 female normals.
-adam