My first cornsnake was WC in my front yard. The first cornsnake I bought was milksnake-phase Miami Cherry, and she was $100. I bought three cornsnakes at that time from Carol Huddleston. The others were Jasper, hypo bloodred ($125) and Jasmine, bloodred ($40). This was also when I bought my first rack, and then the two hatchlings were WAY too small to go into it.
The next snake I bought was Lily, lavender bloodred. This was at the time when Rich Z had a fall end of the season sale and cut the price of lavender bloodreds from $600 to $300 (plus a 25% surcharge for a lone female!) making her _barely_ affordable to me. So my fourth cornsnake purchase was my first expensive cornsnake.
Cherry is my favorite cornsnake, a lovely people-loving snake, and mama of my beautiful yearlings Candy Cane and Milky. (Plus a bunch of nice Miamis that were sold).
My advice is, if you have a certain morph in mind, go for it! As long as you buy from a reputable breeder, the snake should be healthy and will be a cherished pet for many, many years.