Agreed. If everyone could have it then it would mean nothing. But I also think this is specific to not bags for which the quantity does not meet the demand.
I think the way one could read it is : well if everyone could have it, then it's worth "less". Actually, it's far from that and is a big whopping "no". The bag will retain its price and value and LV is good about either keeping to the price or raising it, never dropping it.
If they had a surplus, they would just resell it internally or destroy them, not drop the prices to overcome the surplus. High Fashion can overcome the demand and supply model on one end in that it need not have to sell itself short to get back that surplus, at least when you're LV and the #1 fashion house in the world to date.
Basically, if you want that rare Stephen Mono, it'll be there for you to buy it, whether you're in NYC or in a rinky-dinky mid-west town. They just want to sell more.
Hermès overcomes this by the build-to-order model, kinda like DELL. But I think all the PF-ers here would be a bit piffed if we would have to wait to get our Speedy 30's via made-to-order, lol