Yep, not cheap but quality plants and their shipping is dependable. They send the plants wrapped in wet packing and the trees, while bare root, generally do well coming out of dormancy. I haven't ordered anything lately. The only trees I have had problems with is hybrid apples and pears and that problem was fireblight. No fault of the trees other than not being resistant enough and the rain in our area being above normal in the spring.
I'm betting the Arbor day trees are two foot tall at best upon receipt, please correct me if I am wrong as that is the size of the trees the Mo dept of Conservation sells annually.
Guess it all boils down to what you want, what you want to pay and how long you want to wait for it to produce.