many boys travel between those 2 places-and seem quite able to adapt to local circumstances. Talking money: Phuket is said to be even more ikspinsif as BKK-no personal experience, never been further as the airport there. PLus that there is also a marked difference between the up-scale frenzy Soi tweye-leye/Hotmail bars and the suburban venues in BKK. Same-same as for the price of a plate of fly-lice/khao phat.
For the OP: suggest visiting the cool rose in the north- Chiang Mai. or those real Isan towns, like Udorn or Khorat, where the boys may follow the initial training course to be able to pas the Khorat examinations.