I think the parentage is important but unless the plant is expensive I would buy them if it something I am interested in adding to my garden. When hybridizing I am not the greatest, organized person and do it more for fun. I have noticed the Rices do not list the parents any more. I grow several of their older plants and all do well for me.
I have also wondered about the seed/seedling sales if they are always correct. It a gamble, but that is half the fun.