I know people that would want a Cleveland, but a lot of them live in Calif, Az or Nevada. The people who the engine is attractive to are people with Mustangs or Panteras who want to keep their cars stock. A lot of the Pantera owners have already swapped out their Clevelands for either Windsor or Mod engines. Also, a very common thing to do is to put their Cleveland heads onto a Windsor block...Pantera owners have been doing that since the late 70's...
While the Clevelands were great engines for their time, they were very unreliable. They were Ford's first engines with thinwall castings and the casting shift was horrible. The walls were thin on even a non-bored block. You should only clean up a Cleveland block and try not to bore it .030...
I know people will say that a friend of theirs bored out their Cleveland to .060, but that is very rare to be able to do that and not have one of the walls crack shortly after it was put back into service.
Just my .02.....grr