For waxing to work, the arm hairs must be long enough for the wax to grip them. This means that a requirement of the waxing routine is growing out your arm hairs, which means committing to an awkward and unnatural cycle of having no hair on your arm one month and then having hairy arms the next month. Laser hair removal has none of these drawbacks of waxing. It is a permanent solution, and thus a one-time expense, and it leaves the arms just as smooth if not smoother than waxing. While it's true that completion of the laser hair removal process takes a number of months, it is nonetheless still possible to keep your arms smooth by other means in between procedures.
The presence of unwanted hair on the arms is a problem that makes many women uncomfortable. They can either hide the hair under long sleeves or allow themselves more freedom by removing the hair. The only two viable options for removing unwanted hair on the arms are waxing and laser hair removal. Waxing is painful and a short-term solution which makes it expensive as well. One estimate has it that waxing will cost the average woman roughly $80,000 over her lifetime.