As a former heavy smoker my advice to smokers is buy buy buy while you can.
Thai goal posts are never set in cement which is why they have succeeded in avoiding a lot of flack from international opinion over the centuries.
Things will not long remain as they are now. Traditionally they like to hang back rather than take the lead.
If they once perceive that they are leading the pack and out on a limb, no longer following the pack but leading it , then they will forget all talk of hubs and seek a nut and bolt situation..
Things are going to tighten up so make hay while the sun shines. Get a stash in.
It's worth noting that the reaction to the now fluid situation has taken the authorities completely by surprise and the juvenile flood of comments on social media will only hasten the tightening up the current unclear situation.
If smokers had just done their thing without talking about it so much it would have worked in their favor. But talk attracts attention , and not all of it friendly.
Imagine discovering an unspoilt beach....no tourists and cheap bungalows. If you go online and brag about your discovery , tell the net where it is and post pictures of it , and then a few years later it is no longer as you found it ? Are you not in some way responsible for the negative change ?