Wow, this is really an interesting topic.
The current standard VC box actually includes what I think is meant to be a travel case inside. It is brown suede, I believe, and has slots and pockets for the accessories (e.g., extra strap, thumb drive with info on the watch, etc.) I love the idea of a travel case included with the watch, but I mjust admit, i never use this interior case at all. Some of us silly collectors attempt to keep everything that came with the watch intact and pristine. So, the full box set (all outer and iner boxes, documents and accessories go into storage.
I have a nice collection of boxes now from as early as 1973 that came with my VCs. The variety and range are really nice over teh past several decades. I like the current standard box very much, but would love to see more variety in boxes perhaps tied to the specifc model lines (Traditionelle, Patrimony, Historiques, 1972, Overseas). I must admit, while I store the boxes that come with the watches, and they seldom come out to play, I do like receiving a beautiful box with a watch from VC. The watches are so lovely, they deserve a fine presentation, as others have mentioned.
With respect to the current standard box, I like very much the display window on top that allows for a view on the watch inside. I like that a travel case is included, and were I not such a fussy collector, I might very well use it for travel. I like the soft cloth that envelopes the watch box inside the outer box, which is also handsomely designed. My feeling is that the standard box set is very masculine in design, and I like that as well. I have no idea if the box(es) for ladies is designed differently having never seen any examples. The one thing I don't like about the box is that you must pull it out fully from the outer (cardboard) box because the box top tilts back to open and thus cannot be done while the box sits in the outer decorative cardboard box. I hope that is clear.
As Dan mentioned, the old soft leather wallet is really useful. I have a couple of these that I do use for travel and for storing the watches. But I would love to see a dedicated travel pouch for 1-2 watches offered by VC that could be purchased separately. I also use the service cases that are provided when a watch comes back from service. These are small and not particularly luxurious, but they do the job and are really handy to store a watch in the dresser or in one's suitcase.
One thing I have heard about people leaving the box behind when they purchase a VC (or other brands for that matter) is that these may be instances when someone is buying a watch abroad and then wishes to bring it back to their home country without incurring taxes and import fees on a new purchase. So, the decision to leave the store without the box may not reflect the importance or desirablity of the watch at all.
Thanks for inquiring.