You must take into consideration the cost and time that goes into hybridizing daylilies. First you make the crosses, harvest the seeds, grow the seeds, make selections over a number of years very few are good enough to introduce. Then there is all the care, you need land to grow out large numbers of seedlings, soil amendments, water, weed control, moving and planting seedlings, lots of hours to put into all of the proceeding. Hybridizers earn every cent they make and as an hourly wage it would be low.
I do not hybridize but do know about all the work that goes into making a new introduction, a person does not realize until you find out what actually goes into producing a new introduction. As a longtime member of the AHS reading of different hybridizers and the work they put into bringing us new daylilies, well as I stated they no doubt earn their money.
When looking for a lower price you can always wait until they have been out for a number of years, then look if someone is selling them.