I do want to mention the fact that the higher end chisels retain resale value provided they weren't abused or used up. I wasn't sure what I wanted and being a beginner at that time I went with the 5 piece Lie-Nielsen bench chisel set. They are a good all around chisel and have worked well with everything from dovetails to mortise squaring. I forget what angles I have them set, but I have some lower for paring. My Shapton glass stones have no problem sharpening them.
My woodworking theory: Measure with a micrometer, Mark with chalk, Cut with an ax.