Six Hundred Thousand Dollars.

At this moment, six hundred thousand dollars is the estimated lifetime treatment cost of a person diagnosed with HIV. This is just treatment costs (and it has risen by almost one hundred thousand dollars in the past eight years so if you got infected today, it might cost more). This does not include the loss of income due to sickness. This is just the basic medicine and treatment to keep a person with HIV alive.
Somehow, it seems like a decision that should not be very difficult to make. A three to five thousand square foot house with at least four bedrooms and three bathrooms, landscaping, maybe even a pool, awesome neighborhood and schools. The opportunity to make even more money when the property appreciates. Or AIDS.

Six hundred thousand dollars can buy a pretty decent house in my neck of the woods, which is the northern part of the pacific coast. About three thousand square feet, full landscaping, granite hardwoods, wainscotting, the whole shot (like the one to the left).
Six hundred thousand dollars can buy a house like this in Texas. Almost five thousand square feet, granite, designer fixtures, exotic hardwood cabinets and floors, tile, pool, nice sized yard and so on and so on See the house to the lower right. Do you see why I want to go back down South? LOL.
When you consider the fact that cost of the means to prevent HIV averages anywhere from no monetary cost (abstinence from iv drugs or sex/monogamous relationship) to no more than ten dollars, it really makes even less sense for anyone to not take the precautions to avoid an AIDS infection.