Not cheap, just very reasonable! I guess that the ones that you are referring to are single seat. Although the Pitts product range is not as extensive as say Piper or Cessna's, there are 5 or 6 single seat variants and those lower powered with fewer ailerons do go for substantially less.
Obviously they are not impossible to land and no, you don't need to be a Sky-God to fly one. With the right training anyone could be taught. With your experience I see no reason why after a couple of circuits in a 2-holer, you'd not be ready.
Justiciar, who is away presently is making great progress.
Stik