I use eBay and Reverb.com as internet shop windows because they offer a flexible medium to display currently available models with detailed descriptions, video demonstrations and prices and the opportunity to reach the widest possible audience.
However, I fully understand that buying a guitar remotely via the internet is not the ideal way to chose an instrument and that is especially true of a classical guitar, which more than any other guitar type, is all about how the player connects with an instrument. 
Photographs and videos can only go part way to showing the beauty and performance levels of the instruments I sell. Only when seen, held and played in person can they be truly appreciated. With that in mind, if you have an interest in buying a master grade classical guitar then I urge you to  visit  in person.