I know many that do and many that just survive. Your personal lifestyle will dictate much of that.
However, as of right now the country and in Vientiane proper is pushing a huge development program aimed at attracting tourist. This said, it is prudent to know that this will only force the price of inflation higher for everyone. Even food while abundant is expensive compared to the countryside or even across the river in Thailand. Housing is rising in cost and they typically asked the foreigner to pay a year in advance. This can be negociated to 6 months depending on your job.
Inflation is around 7 to 8 percent a year I think and salaries are low for most all jobs with the exception of perhaps NGOs and deep pocket companies that bring you in from abroad.
Crime is becoming a problem also. A few years ago it was rare to even hear of anything major. However, purse snatching, robbery, breaking and entering, assault are all on the rise in the capital. This is fueled by many factors but three leaders in discussions are; 1. The police are not the quality you are used to in many areas of duty. 2. Drug addiction with little known attempt to rid the problem effectively. 3. With little pay the foreigners are seen a rich targets. This will not be solved until jobs and pay become more appropriate for the local population.
So life is like anywhere else here. Know where you go. Avoid dangerous areas and choose your friends wisely.
Many of us live here and are married, work and do o.k. If you are new to this area or international traveling especially in Asia you should expect to go through what we call a learning curve.
(This is solely based on my own observation and experiences.)