I am currently shopping around for a good, true straight edge for setting up my jointer and general measuring of straightness. But dang, these things get expensive, and fast! Was considering an aluminum one from lee valley for the cost savings, although I'll lose some in tolerance. I noticed Grizzly has some steel, beveled ones for cheap, comparatively speaking: $54 for 36", supposedly accurate to .001". Where a Veritas Steel one will run upwards of $100 shipped. I suppose when it comes to woodworking, well, do I need machine shop tolerances accurate to a fleas brain diameter across the length?? I suppose it would be ideal for setting up tools, but honestly, where should I draw the line? well, where do you draw the line? And does anybody have any experience with any of the above mentioned Straightedges? Let's get-a-talkin some straight edges!!