That Bell albino female looks to be a juvenile based on her low pigment saturation. How many grams does she currently weigh and what is she feeding on? The prices on that site are commensurate for breedable adults over 40g in weight. A juvenile Bell albino directly from Mark and Kim Bell is $70, so $50-$70 is appropriate.
http://www.reptmart.com/p-2416-bell-alb ... enile.aspxI'd be interested in picking her up for my mom. I used to breed ball pythons, cornsnakes, and kingsnakes and collected leopard geckos for the intent of getting into breeding them, but when I got out of the hobby, I gave my leos to my mom who adores them. She was looking for another female.