Huge price difference. I don't have dentures, but have researched them, and top dentures tend to sit quite happily in the roof of your mouth and are not that difficult to negotiate, whereas lower dentures are a different story altogether. Those with direct experience may however have a different tale to tell.
Happy to meet up if there at the same time. But stories are best lived in the present than recalled from the past, although they do help to pass time over a beer.
When I flew them last year BKK - CM - BKK, Thai Smile were actually no more expensive than the cheap airlines. Depends on the day and the flight. Also depends on which airport is most convenient to fly into. I quite like AirAsia's in-flight meals. You have to pay for them, but they are quite tasty and reasonably priced compared to say Jetstar.
It all depends on what happens to you and the state of your body. For instance, don't expect any financial sympathy or support if someone drives over you at a pedestrian crossing. Or if you have a heart attack. Taking a risk is fine until it's not. On the other hand, travel insurance is ridiculously expensive now.