[Roanon]

The given specs are not the only factors that determine quality when considering a CRT. The brand of the tube (? - well, the thing with vacuum inside) determines factors like brilliance and how long it will Last.
There are noticable differences even between units of the same series. Best thing is to check them out yourself in a store where they are sitting next to each other. Be sure to check the settings for "contrast" and "brightness". Contrast already set to the max in order to achieve a good performance = short life of the CRT, generally.