Let me provide the counterpoint here. First a little background. Navy SNFO, currently in the A-pool, currently renting a house here in P-cola. My wife and I owned our house in Pennsylvania (where I was stationed for college). We loved owning our house, and we're going to buy again once we get wherever we wind up eventually.
Having said all that, we're renting down here, for a couple of reasons. Firstly, there is the ever present hurricane threat. It looks like we're not going to have any trouble this year, but next year, who knows. I would rather be out only the stuff inside the house, than I would lose the entire house, falling at the mercy of the insurance company to save my bacon as far as the actual house is concerned. Add to that the skyrocketing insurance rates themselves, if you can even find someone to insure you at all down here.
Next, we just don't know how long we're going to be down here. The oft-mentioned wait time for snfo's is getting much shorter. It used to be ~9 months or so. Right now, it's looking more like ~4 months, and that includes time to complete ifs. When you think about the fact that you could wind up selecting Maritime/Tacamo right after Primary, you could conceivably be out of here after as little as 12-15 months. Cordspec has some really good points, but remember, he's a Marine, so he's guaranteed Tacair.
So, leaving after only a year and a half could put you in a bad situation. It's true that the market is on a downswing right now, and there are some incredible deals to be found out there. But, I'm not convinced that the market has bottomed out just yet. i.e. you might wind up losing money on the house if you sell. If you go with the rental option, you put yourself up against the hurricane odds. Finally, if you rent, you're going to have to pay the taxes on anything you make on the house when you sell it.
Bottom line, it's all about how much risk you're willing to take on while you're here. It wasn't worth it to me; maybe it is to you or others. Again, just wanted to provide a counterpoint to what's been said already.
Brian