I know alot of expats that have come unstuck buying with their Thai partners so just make sure you dont go that route.
Most long time travelers to Thailand avoid Phuket but each to his own.
The main beach areas are getting built up to almost the point of decay. But its a big Island.
Ive been told (and seen a bit of evidence) of a pretty strong infrastructure of whats called ''Thai Mafia'' especially in the transportation industry--not trying to put you off but the more info -the better.
I still go regularly but have found the North suits me better now--best of luck
why buy when you could rent very cheaply?
i agree with skid here.
I lived in Thailand for 6 years in Chiang Mai and most properties havent increased in value like it has here.
biggest mafia going around are the boys in brown.....and im not joking
but my advice if you still want to buy in Thailand would be to ask your question on a forum named "Thaivisa" (im a member on there with the same name as here)biggest expat forum in the world, there you will get loads of answers specifically to where you want to buy as well, as there is a huge expat community in phuket