Not worth it. For all the reasons given. Whereas a photo clone will keep vegging under a long light period the Auto clone will flower at the same time as the mother plant. You will have a mini bud, butter may have been optimistic at a gram.
If you wish to continue growing that strain without the expense of purchasing seed, you can isolate a fem plant and spray with colloidal silver before she flowers. She'll herm and all the seed she produces will be female. Or you can buy regular non fem auto seed and breed your own seed.