[Walt Fricke]

Could be. I'm seeing higher specs for some of these low cost ones, but the industrial Hawkeye in the USD 2.6-9K range (high end allows tip manipulation) lists digital photo size of 640x480. Their ad shows a guy inspecting jet turbine blades. I could maybe go to USD 500 for something which is distinctly better than the Snap-on in some useful way, but not to that level. But chasing higher resolution may not produce a benefit.

But my humble Netbook with its 10.1" screen has a native resolution of 1366x768. My assumption is that you give up something if the resolution of the source is less than that of the screen, and you get nothing extra if it is larger.