They're talking about changing the visa regulations here, but so far haven't done anything about it. You can come in on a short term visa. Then you'll need to cross the border into Thailand to get your first longer term visa (unless they've changed the rules). After that, you can renew it in Cambodia. I just got a year's visa for $295 just last week. All I had to do was take it to a trusted travel agent and they handled everything. It's my 9th. I just had to go to Tratt for a day to get my first one. When they change the regulations, you'll have a choice between a retirement visa or a business visa. No one's sure how it will work yet or when they'll make the change.