Time and money. If I can go both places, why not? considering it is only a mere few hours apart, like you said and a good few hundred dollars difference as well. With additional few days of hotel stays plus money for flight to GZ, I could have gotten a few watches for that money. I know where to get watches in Bangkok but not for GZ. There has been mixed reviews about GZ, hence my hesitation.
Not to forget, the sole purpose for my trip there is watches. I wouldn't wanna spend my flight there to pick up a few watches and eventually have them gone to @#$. In my last trip to Bangkok, I totally enjoyed my time where I could go shop to shop to have a feel of the watches, chatting up with the peeps there about watches and what not, plus the bargaining makes the fun out of it all as well. Having gotten good watches from Bangkok, I would love to go again but wanna expand my horizon, so to speak.
As for the sticker thing, it could very well be from a different factory and the dealers I have been dealing with, and quite possibly, the dealers do not have any affliation with them. Whatever, it is, I simply want my trip to be a fruitful one.