Mark,
I don't quite understand your thinking in all this. You're looking at some pretty low end bandsaws but then mention a $1000+ Jet. Buy the Grizzly 555LANV at $445 plus freight and be done with it. Use it and enjoy. When you're finished with it, I'm sure you can sell it at a reasonable price. Good luck getting much money when selling any of those HF, PC or Rockwell saws in the future. Buy a few inexpensive Olson blades which will do wonders over the stock blade for very little money. There is a very good Youtube video on fine tuning any bandsaw. I followed the simple steps and have great success every time I run my 555LX.
Personally I wouldn't touch the HF, PC or Rockwell. I read too many comments from owners of HF and PC that don't instill much confidence. I look at buying tools to use tools not to have a work in progress in the tool itself. The Rockwell sounds like a work in progress.
Also, as far as I can tell, the HF and PC saws do not come with a fence. The fence on the Grizzly is included, of excellent quality and for me quite accurate. 50/50 chance you have to return the HF. Reviews of the PC talk of assembly oddities. Rockwell, well they don't make anything any more than the little table top saws now that I can find, so buying used means you may need a parts/maintenance source.
Grizzly tools may not be the end-all-be-all, but in my experience, customer service has been excellent (in replacing a jointer fence) and the tools have performed at or above my expectations, bandsaw, jointer, and dust collection. I research tools extensively before buying, but I digest all the info and just go with it. I have a Porter Cable power planer which works wonderfully, but after viewing their bandsaw in person at a Lowes, I was not impressed at the quality. HF, oh heavens, no comment other than I buy things from them that they can't screw up like nitrile gloves.