Please do not feel badly about your lack of typing skills! My honorable wife compares my crude typing method to that of a little pig pecking out words with his little...
As you note, the quality of the "Chanthology" DVDs is superb! There is rarely any possible way for "grey market" sellers to match such a presentation. Quality varies between sellers and is rarely consistant within what they offer. This is the nature of the beast. Hopefully, the product you received from The Vintage Theater was at least on par with their asking price.
There will not be a "Chanthology Volume 2' as MGM Home Entertainment holds only the rights to the six movies that they released with that set. The sales figures for "same" were quite good, however, and it is probably certain that those entities that hold the rights to other Chan films have taken due note, and, who can say that we will not see more commercial releases of Charlie Chan movies in the near future?