That is a good point if you happen to use two similar looking blooming plants for a cross. I think it would be interesting to cross something like Galaxy Explosion or Roses in Snow with a unusual patterned, toothy, or ruffled cultivar. Would be interesting to REALLY mix up the parentage when hybridizing to see what comes through in the children plants.
One of the features I really like here on ATP is the plant database that allows us to click on the parents or children files to see what some of the genetic traits are that might be likely to get passed on. Though some of the cultivars have such numerous and diverse genetic lines that it may seem that just about anything is possible when crossing! I love the seemingly endless possibilities! I never get bored experimenting with hybridizing!
I know most folks here are daylily cultivar collectors. I think the only reason I would want to purchase a named cultivar is for the genetic possibilities to use in my hybridizing. I have a heart for hybridizing and would much prefer a hybrid seedling than a named plant. I am one of those people who are drawn to daylilies for the hybridizing possibilities. I am not looking to sell plants, I just enjoy messing with genetics. I must have missed my calling in life and should have been a botanist or geneticist or something ....